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- replaced zstrformat with stb_sprintf. 

The main advantage here is that this allows to get rid of the gdtoa dependency, it is also preferable to have some code here that's being maintained.
Feature-wise both are mostly identical, stb also support MSFT integer size modifiers and hexadecimal floats.
This commit is contained in:
Christoph Oelckers 2023-08-09 10:27:09 +02:00
parent 479795abe2
commit fdad3186a6
60 changed files with 1945 additions and 11632 deletions
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1
CMakeLists.txt
View File

@ -412,7 +412,6 @@ option( DYN_OPENAL "Dynamically load OpenAL" ON )
add_subdirectory( libraries/lzma )
add_subdirectory( tools )
add_subdirectory( libraries/gdtoa )
add_subdirectory( wadsrc )
add_subdirectory( wadsrc_bm )
add_subdirectory( wadsrc_lights )

45
libraries/gdtoa/CMakeLists.txt
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@ -1,45 +0,0 @@
cmake_minimum_required( VERSION 3.1.0 )
set( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG" )
# Disable warnings for << operator precedence (4554) and
# unreferenced labels (4102) from VC
if( MSVC )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4554 /wd4102" )
endif()
if( ZD_CMAKE_COMPILER_IS_GNUC_COMPATIBLE )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra" )
endif()
include_directories( ${CMAKE_CURRENT_BINARY_DIR} )
add_definitions( -DINFNAN_CHECK -DMULTIPLE_THREADS )
if( NOT MSVC AND NOT APPLE )
if( NOT CMAKE_CROSSCOMPILING )
add_executable( arithchk arithchk.c )
endif()
add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/arith.h
COMMAND arithchk >${CMAKE_CURRENT_BINARY_DIR}/arith.h
DEPENDS arithchk )
if( NOT CMAKE_CROSSCOMPILING )
add_executable( qnan qnan.c arith.h )
set( CROSS_EXPORTS ${CROSS_EXPORTS} arithchk qnan PARENT_SCOPE )
endif()
add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/gd_qnan.h
COMMAND qnan >${CMAKE_CURRENT_BINARY_DIR}/gd_qnan.h
DEPENDS qnan )
set( GEN_FP_FILES arith.h gd_qnan.h )
set( GEN_FP_DEPS ${CMAKE_CURRENT_BINARY_DIR}/arith.h ${CMAKE_CURRENT_BINARY_DIR}/gd_qnan.h )
endif()
add_library( gdtoa STATIC
${GEN_FP_FILES}
dmisc.c
dtoa.c
misc.c
)
target_link_libraries( gdtoa )

400
libraries/gdtoa/README
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@ -1,400 +0,0 @@
This directory contains source for a library of binary -> decimal
and decimal -> binary conversion routines, for single-, double-,
and extended-precision IEEE binary floating-point arithmetic, and
other IEEE-like binary floating-point, including "double double",
as in
T. J. Dekker, "A Floating-Point Technique for Extending the
Available Precision", Numer. Math. 18 (1971), pp. 224-242
and
"Inside Macintosh: PowerPC Numerics", Addison-Wesley, 1994
The conversion routines use double-precision floating-point arithmetic
and, where necessary, high precision integer arithmetic. The routines
are generalizations of the strtod and dtoa routines described in
David M. Gay, "Correctly Rounded Binary-Decimal and
Decimal-Binary Conversions", Numerical Analysis Manuscript
No. 90-10, Bell Labs, Murray Hill, 1990;
http://cm.bell-labs.com/cm/cs/what/ampl/REFS/rounding.ps.gz
(based in part on papers by Clinger and Steele & White: see the
references in the above paper).
The present conversion routines should be able to use any of IEEE binary,
VAX, or IBM-mainframe double-precision arithmetic internally, but I (dmg)
have so far only had a chance to test them with IEEE double precision
arithmetic.
The core conversion routines are strtodg for decimal -> binary conversions
and gdtoa for binary -> decimal conversions. These routines operate
on arrays of unsigned 32-bit integers of type ULong, a signed 32-bit
exponent of type Long, and arithmetic characteristics described in
struct FPI; FPI, Long, and ULong are defined in gdtoa.h. File arith.h
is supposed to provide #defines that cause gdtoa.h to define its
types correctly. File arithchk.c is source for a program that
generates a suitable arith.h on all systems where I've been able to
test it.
The core conversion routines are meant to be called by helper routines
that know details of the particular binary arithmetic of interest and
convert. The present directory provides helper routines for 5 variants
of IEEE binary floating-point arithmetic, each indicated by one or
two letters:
f IEEE single precision
d IEEE double precision
x IEEE extended precision, as on Intel 80x87
and software emulations of Motorola 68xxx chips
that do not pad the way the 68xxx does, but
only store 80 bits
xL IEEE extended precision, as on Motorola 68xxx chips
Q quad precision, as on Sun Sparc chips
dd double double, pairs of IEEE double numbers
whose sum is the desired value
For decimal -> binary conversions, there are three families of
helper routines: one for round-nearest (or the current rounding
mode on IEEE-arithmetic systems that provide the C99 fegetround()
function, if compiled with -DHonor_FLT_ROUNDS):
strtof
strtod
strtodd
strtopd
strtopf
strtopx
strtopxL
strtopQ
one with rounding direction specified:
strtorf
strtord
strtordd
strtorx
strtorxL
strtorQ
and one for computing an interval (at most one bit wide) that contains
the decimal number:
strtoIf
strtoId
strtoIdd
strtoIx
strtoIxL
strtoIQ
The latter call strtoIg, which makes one call on strtodg and adjusts
the result to provide the desired interval. On systems where native
arithmetic can easily make one-ulp adjustments on values in the
desired floating-point format, it might be more efficient to use the
native arithmetic. Routine strtodI is a variant of strtoId that
illustrates one way to do this for IEEE binary double-precision
arithmetic -- but whether this is more efficient remains to be seen.
Functions strtod and strtof have "natural" return types, float and
double -- strtod is specified by the C standard, and strtof appears
in the stdlib.h of some systems, such as (at least some) Linux systems.
The other functions write their results to their final argument(s):
to the final two argument for the strtoI... (interval) functions,
and to the final argument for the others (strtop... and strtor...).
Where possible, these arguments have "natural" return types (double*
or float*), to permit at least some type checking. In reality, they
are viewed as arrays of ULong (or, for the "x" functions, UShort)
values. On systems where long double is the appropriate type, one can
pass long double* final argument(s) to these routines. The int value
that these routines return is the return value from the call they make
on strtodg; see the enum of possible return values in gdtoa.h.
Source files g_ddfmt.c, misc.c, smisc.c, strtod.c, strtodg.c, and ulp.c
should use true IEEE double arithmetic (not, e.g., double extended),
at least for storing (and viewing the bits of) the variables declared
"double" within them.
One detail indicated in struct FPI is whether the target binary
arithmetic departs from the IEEE standard by flushing denormalized
numbers to 0. On systems that do this, the helper routines for
conversion to double-double format (when compiled with
Sudden_Underflow #defined) penalize the bottom of the exponent
range so that they return a nonzero result only when the least
significant bit of the less significant member of the pair of
double values returned can be expressed as a normalized double
value. An alternative would be to drop to 53-bit precision near
the bottom of the exponent range. To get correct rounding, this
would (in general) require two calls on strtodg (one specifying
126-bit arithmetic, then, if necessary, one specifying 53-bit
arithmetic).
By default, the core routine strtodg and strtod set errno to ERANGE
if the result overflows to +Infinity or underflows to 0. Compile
these routines with NO_ERRNO #defined to inhibit errno assignments.
Routine strtod is based on netlib's "dtoa.c from fp", and
(f = strtod(s,se)) is more efficient for some conversions than, say,
strtord(s,se,1,&f). Parts of strtod require true IEEE double
arithmetic with the default rounding mode (round-to-nearest) and, on
systems with IEEE extended-precision registers, double-precision
(53-bit) rounding precision. If the machine uses (the equivalent of)
Intel 80x87 arithmetic, the call
_control87(PC_53, MCW_PC);
does this with many compilers. Whether this or another call is
appropriate depends on the compiler; for this to work, it may be
necessary to #include "float.h" or another system-dependent header
file.
Source file strtodnrp.c gives a strtod that does not require 53-bit
rounding precision on systems (such as Intel IA32 systems) that may
suffer double rounding due to use of extended-precision registers.
For some conversions this variant of strtod is less efficient than the
one in strtod.c when the latter is run with 53-bit rounding precision.
When float or double are involved, the values that the strto* routines
return for NaNs are determined by gd_qnan.h, which the makefile
generates by running the program whose source is qnan.c. For other
types, default NaN values are specified in g__fmt.c and may need
adjusting. Note that the rules for distinguishing signaling from
quiet NaNs are system-dependent. For cross-compilation, you need to
determine arith.h and gd_qnan.h suitably, e.g., using the arithmetic
of the target machine.
C99's hexadecimal floating-point constants are recognized by the
strto* routines (but this feature has not yet been heavily tested).
Compiling with NO_HEX_FP #defined disables this feature.
When compiled with -DINFNAN_CHECK, the strto* routines recognize C99's
NaN and Infinity syntax. Moreover, unless No_Hex_NaN is #defined, the
strto* routines also recognize C99's NaN(...) syntax: they accept
(case insensitively) strings of the form NaN(x), where x is a string
of hexadecimal digits and spaces; if there is only one string of
hexadecimal digits, it is taken for the fraction bits of the resulting
NaN; if there are two or more strings of hexadecimal digits, each
string is assigned to the next available sequence of 32-bit words of
fractions bits (starting with the most significant), right-aligned in
each sequence. Strings of hexadecimal digits may be preceded by "0x"
or "0X".
For binary -> decimal conversions, I've provided a family of helper
routines:
g_ffmt
g_dfmt
g_ddfmt
g_xfmt
g_xLfmt
g_Qfmt
g_ffmt_p
g_dfmt_p
g_ddfmt_p
g_xfmt_p
g_xLfmt_p
g_Qfmt_p
which do a "%g" style conversion either to a specified number of decimal
places (if their ndig argument is positive), or to the shortest
decimal string that rounds to the given binary floating-point value
(if ndig <= 0). They write into a buffer supplied as an argument
and return either a pointer to the end of the string (a null character)
in the buffer, if the buffer was long enough, or 0. Other forms of
conversion are easily done with the help of gdtoa(), such as %e or %f
style and conversions with direction of rounding specified (so that, if
desired, the decimal value is either >= or <= the binary value).
On IEEE-arithmetic systems that provide the C99 fegetround() function,
if compiled with -DHonor_FLT_ROUNDS, these routines honor the current
rounding mode. For pedants, the ...fmt_p() routines are similar to the
...fmt() routines, but have an additional final int argument, nik,
that for conversions of Infinity or NaN, determines whether upper,
lower, or mixed case is used, whether (...) is added to NaN values,
and whether the sign of a NaN is reported or suppressed:
nik = ic + 6*(nb + 3*ns),
where ic with 0 <= ic < 6 controls the rendering of Infinity and NaN:
0 ==> Infinity or NaN
1 ==> infinity or nan
2 ==> INFINITY or NAN
3 ==> Inf or NaN
4 ==> inf or nan
5 ==> INF or NAN
nb with 0 <= nb < 3 determines whether NaN values are rendered
as NaN(...):
0 ==> no
1 ==> yes
2 ==> no for default NaN values; yes otherwise
ns = 0 or 1 determines whether the sign of NaN values reported:
0 ==> distinguish NaN and -NaN
1 ==> report both as NaN
For an example of more general conversions based on dtoa(), see
netlib's "printf.c from ampl/solvers".
For double-double -> decimal, g_ddfmt() assumes IEEE-like arithmetic
of precision max(126, #bits(input)) bits, where #bits(input) is the
number of mantissa bits needed to represent the sum of the two double
values in the input.
The makefile creates a library, gdtoa.a. To use the helper
routines, a program only needs to include gdtoa.h. All the
source files for gdtoa.a include a more extensive gdtoaimp.h;
among other things, gdtoaimp.h has #defines that make "internal"
names end in _D2A. To make a "system" library, one could modify
these #defines to make the names start with __.
Various comments about possible #defines appear in gdtoaimp.h,
but for most purposes, arith.h should set suitable #defines.
Systems with preemptive scheduling of multiple threads require some
manual intervention. On such systems, it's necessary to compile
dmisc.c, dtoa.c gdota.c, and misc.c with MULTIPLE_THREADS #defined,
and to provide (or suitably #define) two locks, acquired by
ACQUIRE_DTOA_LOCK(n) and freed by FREE_DTOA_LOCK(n) for n = 0 or 1.
(The second lock, accessed in pow5mult, ensures lazy evaluation of
only one copy of high powers of 5; omitting this lock would introduce
a small probability of wasting memory, but would otherwise be harmless.)
Routines that call dtoa or gdtoa directly must also invoke freedtoa(s)
to free the value s returned by dtoa or gdtoa. It's OK to do so whether
or not MULTIPLE_THREADS is #defined, and the helper g_*fmt routines
listed above all do this indirectly (in gfmt_D2A(), which they all call).
By default, there is a private pool of memory of length 2000 bytes
for intermediate quantities, and MALLOC (see gdtoaimp.h) is called only
if the private pool does not suffice. 2000 is large enough that MALLOC
is called only under very unusual circumstances (decimal -> binary
conversion of very long strings) for conversions to and from double
precision. For systems with preemptively scheduled multiple threads
or for conversions to extended or quad, it may be appropriate to
#define PRIVATE_MEM nnnn, where nnnn is a suitable value > 2000.
For extended and quad precisions, -DPRIVATE_MEM=20000 is probably
plenty even for many digits at the ends of the exponent range.
Use of the private pool avoids some overhead.
Directory test provides some test routines. See its README.
I've also tested this stuff (except double double conversions)
with Vern Paxson's testbase program: see
V. Paxson and W. Kahan, "A Program for Testing IEEE Binary-Decimal
Conversion", manuscript, May 1991,
ftp://ftp.ee.lbl.gov/testbase-report.ps.Z .
(The same ftp directory has source for testbase.)
Some system-dependent additions to CFLAGS in the makefile:
HU-UX: -Aa -Ae
OSF (DEC Unix): -ieee_with_no_inexact
SunOS 4.1x: -DKR_headers -DBad_float_h
If you want to put this stuff into a shared library and your
operating system requires export lists for shared libraries,
the following would be an appropriate export list:
dtoa
freedtoa
g_Qfmt
g_ddfmt
g_dfmt
g_ffmt
g_xLfmt
g_xfmt
gdtoa
strtoIQ
strtoId
strtoIdd
strtoIf
strtoIx
strtoIxL
strtod
strtodI
strtodg
strtof
strtopQ
strtopd
strtopdd
strtopf
strtopx
strtopxL
strtorQ
strtord
strtordd
strtorf
strtorx
strtorxL
When time permits, I (dmg) hope to write in more detail about the
present conversion routines; for now, this README file must suffice.
Meanwhile, if you wish to write helper functions for other kinds of
IEEE-like arithmetic, some explanation of struct FPI and the bits
array may be helpful. Both gdtoa and strtodg operate on a bits array
described by FPI *fpi. The bits array is of type ULong, a 32-bit
unsigned integer type. Floating-point numbers have fpi->nbits bits,
with the least significant 32 bits in bits[0], the next 32 bits in
bits[1], etc. These numbers are regarded as integers multiplied by
2^e (i.e., 2 to the power of the exponent e), where e is the second
argument (be) to gdtoa and is stored in *exp by strtodg. The minimum
and maximum exponent values fpi->emin and fpi->emax for normalized
floating-point numbers reflect this arrangement. For example, the
P754 standard for binary IEEE arithmetic specifies doubles as having
53 bits, with normalized values of the form 1.xxxxx... times 2^(b-1023),
with 52 bits (the x's) and the biased exponent b represented explicitly;
b is an unsigned integer in the range 1 <= b <= 2046 for normalized
finite doubles, b = 0 for denormals, and b = 2047 for Infinities and NaNs.
To turn an IEEE double into the representation used by strtodg and gdtoa,
we multiply 1.xxxx... by 2^52 (to make it an integer) and reduce the
exponent e = (b-1023) by 52:
fpi->emin = 1 - 1023 - 52
fpi->emax = 1046 - 1023 - 52
In various wrappers for IEEE double, we actually write -53 + 1 rather
than -52, to emphasize that there are 53 bits including one implicit bit.
Field fpi->rounding indicates the desired rounding direction, with
possible values
FPI_Round_zero = toward 0,
FPI_Round_near = unbiased rounding -- the IEEE default,
FPI_Round_up = toward +Infinity, and
FPI_Round_down = toward -Infinity
given in gdtoa.h.
Field fpi->sudden_underflow indicates whether strtodg should return
denormals or flush them to zero. Normal floating-point numbers have
bit fpi->nbits in the bits array on. Denormals have it off, with
exponent = fpi->emin. Strtodg provides distinct return values for normals
and denormals; see gdtoa.h.
Compiling g__fmt.c, strtod.c, and strtodg.c with -DUSE_LOCALE causes
the decimal-point character to be taken from the current locale; otherwise
it is '.'.
Source files dtoa.c and strtod.c in this directory are derived from
netlib's "dtoa.c from fp" and are meant to function equivalently.
When compiled with Honor_FLT_ROUNDS #defined (on systems that provide
FLT_ROUNDS and fegetround() as specified in the C99 standard), they
honor the current rounding mode. Because FLT_ROUNDS is buggy on some
(Linux) systems -- not reflecting calls on fesetround(), as the C99
standard says it should -- when Honor_FLT_ROUNDS is #defined, the
current rounding mode is obtained from fegetround() rather than from
FLT_ROUNDS, unless Trust_FLT_ROUNDS is also #defined.
Compile with -DUSE_LOCALE to use the current locale; otherwise
decimal points are assumed to be '.'. With -DUSE_LOCALE, unless
you also compile with -DNO_LOCALE_CACHE, the details about the
current "decimal point" character string are cached and assumed not
to change during the program's execution.
On machines with a 64-bit long double and perhaps a 113-bit "quad"
type, you can invoke "make Printf" to add Printf (and variants, such
as Fprintf) to gdtoa.a. These are analogs, declared in stdio1.h, of
printf and fprintf, etc. in which %La, %Le, %Lf, and %Lg are for long
double and (if appropriate) %Lqa, %Lqe, %Lqf, and %Lqg are for quad
precision printing.
Please send comments to David M. Gay (dmg at acm dot org, with " at "
changed at "@" and " dot " changed to ".").

183
libraries/gdtoa/arithchk.c
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@ -1,183 +0,0 @@
/****************************************************************
Copyright (C) 1997, 1998 Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Try to deduce arith.h from arithmetic properties. */
#include <stdio.h>
static int dalign;
typedef struct
Akind {
char *name;
int kind;
} Akind;
static Akind
IEEE_8087 = { "IEEE_8087", 1 },
IEEE_MC68k = { "IEEE_MC68k", 2 },
IBM = { "IBM", 3 },
VAX = { "VAX", 4 },
CRAY = { "CRAY", 5};
static Akind *
Lcheck()
{
union {
double d;
long L[2];
} u;
struct {
double d;
long L;
} x[2];
if (sizeof(x) > 2*(sizeof(double) + sizeof(long)))
dalign = 1;
u.L[0] = u.L[1] = 0;
u.d = 1e13;
if (u.L[0] == 1117925532 && u.L[1] == -448790528)
return &IEEE_MC68k;
if (u.L[1] == 1117925532 && u.L[0] == -448790528)
return &IEEE_8087;
if (u.L[0] == -2065213935 && u.L[1] == 10752)
return &VAX;
if (u.L[0] == 1267827943 && u.L[1] == 704643072)
return &IBM;
return 0;
}
static Akind *
icheck()
{
union {
double d;
int L[2];
} u;
struct {
double d;
int L;
} x[2];
if (sizeof(x) > 2*(sizeof(double) + sizeof(int)))
dalign = 1;
u.L[0] = u.L[1] = 0;
u.d = 1e13;
if (u.L[0] == 1117925532 && u.L[1] == -448790528)
return &IEEE_MC68k;
if (u.L[1] == 1117925532 && u.L[0] == -448790528)
return &IEEE_8087;
if (u.L[0] == -2065213935 && u.L[1] == 10752)
return &VAX;
if (u.L[0] == 1267827943 && u.L[1] == 704643072)
return &IBM;
return 0;
}
char *emptyfmt = ""; /* avoid possible warning message with printf("") */
static Akind *
ccheck()
{
union {
double d;
long L;
} u;
long Cray1;
/* Cray1 = 4617762693716115456 -- without overflow on non-Crays */
Cray1 = printf("%s", emptyfmt) < 0 ? 0 : 4617762;
if (printf(emptyfmt, Cray1) >= 0)
Cray1 = 1000000*Cray1 + 693716;
if (printf(emptyfmt, Cray1) >= 0)
Cray1 = 1000000*Cray1 + 115456;
u.d = 1e13;
if (u.L == Cray1)
return &CRAY;
return 0;
}
static int
fzcheck()
{
double a, b;
int i;
a = 1.;
b = .1;
for(i = 155;; b *= b, i >>= 1) {
if (i & 1) {
a *= b;
if (i == 1)
break;
}
}
b = a * a;
return b == 0.;
}
int
main()
{
Akind *a = 0;
int Ldef = 0;
FILE *f;
#ifdef WRITE_ARITH_H /* for Symantec's buggy "make" */
f = fopen("arith.h", "w");
if (!f) {
printf("Cannot open arith.h\n");
return 1;
}
#else
f = stdout;
#endif
if (sizeof(double) == 2*sizeof(long))
a = Lcheck();
else if (sizeof(double) == 2*sizeof(int)) {
Ldef = 1;
a = icheck();
}
else if (sizeof(double) == sizeof(long))
a = ccheck();
if (a) {
fprintf(f, "#define %s\n#define Arith_Kind_ASL %d\n",
a->name, a->kind);
if (Ldef)
fprintf(f, "#define Long int\n#define Intcast (int)(long)\n");
if (dalign)
fprintf(f, "#define Double_Align\n");
if (sizeof(char*) == 8)
fprintf(f, "#define X64_bit_pointers\n");
#ifndef NO_LONG_LONG
if (sizeof(long long) < 8)
#endif
fprintf(f, "#define NO_LONG_LONG\n");
if (a->kind <= 2 && fzcheck())
fprintf(f, "#define Sudden_Underflow\n");
return 0;
}
fprintf(f, "/* Unknown arithmetic */\n");
return 1;
}

216
libraries/gdtoa/dmisc.c
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@ -1,216 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#ifndef MULTIPLE_THREADS
char *dtoa_result;
#endif
char *
#ifdef KR_headers
rv_alloc(i) int i;
#else
rv_alloc(int i)
#endif
{
int j, k, *r;
j = sizeof(ULong);
for(k = 0;
sizeof(Bigint) - sizeof(ULong) - sizeof(int) + j <= (size_t)(i);
j <<= 1)
k++;
r = (int*)Balloc(k);
*r = k;
return
#ifndef MULTIPLE_THREADS
dtoa_result =
#endif
(char *)(r+1);
}
char *
#ifdef KR_headers
nrv_alloc(s, rve, n) char *s, **rve; int n;
#else
nrv_alloc(char *s, char **rve, int n)
#endif
{
char *rv, *t;
t = rv = rv_alloc(n);
while((*t = *s++) !=0)
t++;
if (rve)
*rve = t;
return rv;
}
/* freedtoa(s) must be used to free values s returned by dtoa
* when MULTIPLE_THREADS is #defined. It should be used in all cases,
* but for consistency with earlier versions of dtoa, it is optional
* when MULTIPLE_THREADS is not defined.
*/
void
#ifdef KR_headers
freedtoa(s) char *s;
#else
freedtoa(char *s)
#endif
{
Bigint *b = (Bigint *)((int *)s - 1);
b->maxwds = 1 << (b->k = *(int*)b);
Bfree(b);
#ifndef MULTIPLE_THREADS
if (s == dtoa_result)
dtoa_result = 0;
#endif
}
int
quorem
#ifdef KR_headers
(b, S) Bigint *b, *S;
#else
(Bigint *b, Bigint *S)
#endif
{
int n;
ULong *bx, *bxe, q, *sx, *sxe;
#ifdef ULLong
ULLong borrow, carry, y, ys;
#else
ULong borrow, carry, y, ys;
#ifdef Pack_32
ULong si, z, zs;
#endif
#endif
n = S->wds;
#ifdef DEBUG
/*debug*/ if (b->wds > n)
/*debug*/ Bug("oversize b in quorem");
#endif
if (b->wds < n)
return 0;
sx = S->x;
sxe = sx + --n;
bx = b->x;
bxe = bx + n;
q = *bxe / (*sxe + 1); /* ensure q <= true quotient */
#ifdef DEBUG
/*debug*/ if (q > 9)
/*debug*/ Bug("oversized quotient in quorem");
#endif
if (q) {
borrow = 0;
carry = 0;
do {
#ifdef ULLong
ys = *sx++ * (ULLong)q + carry;
carry = ys >> 32;
y = *bx - (ys & 0xffffffffUL) - borrow;
borrow = y >> 32 & 1UL;
*bx++ = (ULong)(y & 0xffffffffUL);
#else
#ifdef Pack_32
si = *sx++;
ys = (si & 0xffff) * q + carry;
zs = (si >> 16) * q + (ys >> 16);
carry = zs >> 16;
y = (*bx & 0xffff) - (ys & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
z = (*bx >> 16) - (zs & 0xffff) - borrow;
borrow = (z & 0x10000) >> 16;
Storeinc(bx, z, y);
#else
ys = *sx++ * q + carry;
carry = ys >> 16;
y = *bx - (ys & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
*bx++ = y & 0xffff;
#endif
#endif
}
while(sx <= sxe);
if (!*bxe) {
bx = b->x;
while(--bxe > bx && !*bxe)
--n;
b->wds = n;
}
}
if (cmp(b, S) >= 0) {
q++;
borrow = 0;
carry = 0;
bx = b->x;
sx = S->x;
do {
#ifdef ULLong
ys = *sx++ + carry;
carry = ys >> 32;
y = *bx - (ys & 0xffffffffUL) - borrow;
borrow = y >> 32 & 1UL;
*bx++ = (ULong)(y & 0xffffffffUL);
#else
#ifdef Pack_32
si = *sx++;
ys = (si & 0xffff) + carry;
zs = (si >> 16) + (ys >> 16);
carry = zs >> 16;
y = (*bx & 0xffff) - (ys & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
z = (*bx >> 16) - (zs & 0xffff) - borrow;
borrow = (z & 0x10000) >> 16;
Storeinc(bx, z, y);
#else
ys = *sx++ + carry;
carry = ys >> 16;
y = *bx - (ys & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
*bx++ = y & 0xffff;
#endif
#endif
}
while(sx <= sxe);
bx = b->x;
bxe = bx + n;
if (!*bxe) {
while(--bxe > bx && !*bxe)
--n;
b->wds = n;
}
}
return q;
}

780
libraries/gdtoa/dtoa.c
View File

@ -1,780 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 1999 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
/* dtoa for IEEE arithmetic (dmg): convert double to ASCII string.
*
* Inspired by "How to Print Floating-Point Numbers Accurately" by
* Guy L. Steele, Jr. and Jon L. White [Proc. ACM SIGPLAN '90, pp. 112-126].
*
* Modifications:
* 1. Rather than iterating, we use a simple numeric overestimate
* to determine k = floor(log10(d)). We scale relevant
* quantities using O(log2(k)) rather than O(k) multiplications.
* 2. For some modes > 2 (corresponding to ecvt and fcvt), we don't
* try to generate digits strictly left to right. Instead, we
* compute with fewer bits and propagate the carry if necessary
* when rounding the final digit up. This is often faster.
* 3. Under the assumption that input will be rounded nearest,
* mode 0 renders 1e23 as 1e23 rather than 9.999999999999999e22.
* That is, we allow equality in stopping tests when the
* round-nearest rule will give the same floating-point value
* as would satisfaction of the stopping test with strict
* inequality.
* 4. We remove common factors of powers of 2 from relevant
* quantities.
* 5. When converting floating-point integers less than 1e16,
* we use floating-point arithmetic rather than resorting
* to multiple-precision integers.
* 6. When asked to produce fewer than 15 digits, we first try
* to get by with floating-point arithmetic; we resort to
* multiple-precision integer arithmetic only if we cannot
* guarantee that the floating-point calculation has given
* the correctly rounded result. For k requested digits and
* "uniformly" distributed input, the probability is
* something like 10^(k-15) that we must resort to the Long
* calculation.
*/
#ifdef Honor_FLT_ROUNDS
#undef Check_FLT_ROUNDS
#define Check_FLT_ROUNDS
#else
#define Rounding Flt_Rounds
#endif
char *
dtoa
#ifdef KR_headers
(d0, mode, ndigits, decpt, sign, rve)
double d0; int mode, ndigits, *decpt, *sign; char **rve;
#else
(double d0, int mode, int ndigits, int *decpt, int *sign, char **rve)
#endif
{
/* Arguments ndigits, decpt, sign are similar to those
of ecvt and fcvt; trailing zeros are suppressed from
the returned string. If not null, *rve is set to point
to the end of the return value. If d is +-Infinity or NaN,
then *decpt is set to 9999.
mode:
0 ==> shortest string that yields d when read in
and rounded to nearest.
1 ==> like 0, but with Steele & White stopping rule;
e.g. with IEEE P754 arithmetic , mode 0 gives
1e23 whereas mode 1 gives 9.999999999999999e22.
2 ==> max(1,ndigits) significant digits. This gives a
return value similar to that of ecvt, except
that trailing zeros are suppressed.
3 ==> through ndigits past the decimal point. This
gives a return value similar to that from fcvt,
except that trailing zeros are suppressed, and
ndigits can be negative.
4,5 ==> similar to 2 and 3, respectively, but (in
round-nearest mode) with the tests of mode 0 to
possibly return a shorter string that rounds to d.
With IEEE arithmetic and compilation with
-DHonor_FLT_ROUNDS, modes 4 and 5 behave the same
as modes 2 and 3 when FLT_ROUNDS != 1.
6-9 ==> Debugging modes similar to mode - 4: don't try
fast floating-point estimate (if applicable).
Values of mode other than 0-9 are treated as mode 0.
Sufficient space is allocated to the return value
to hold the suppressed trailing zeros.
*/
int bbits, b2, b5, be, dig, i, ieps, ilim, ilim0, ilim1,
j, j1, k, k0, k_check, leftright, m2, m5, s2, s5,
spec_case, try_quick;
Long L;
#ifndef Sudden_Underflow
int denorm;
ULong x;
#endif
Bigint *b, *b1, *delta, *mlo, *mhi, *S;
U d, d2, eps;
double ds;
char *s, *s0;
#ifdef SET_INEXACT
int inexact, oldinexact;
#endif
#ifdef Honor_FLT_ROUNDS /*{*/
int Rounding;
#ifdef Trust_FLT_ROUNDS /*{{ only define this if FLT_ROUNDS really works! */
Rounding = Flt_Rounds;
#else /*}{*/
Rounding = 1;
switch(fegetround()) {
case FE_TOWARDZERO: Rounding = 0; break;
case FE_UPWARD: Rounding = 2; break;
case FE_DOWNWARD: Rounding = 3;
}
#endif /*}}*/
#endif /*}*/
#ifndef MULTIPLE_THREADS
if (dtoa_result) {
freedtoa(dtoa_result);
dtoa_result = 0;
}
#endif
d.d = d0;
if (word0(&d) & Sign_bit) {
/* set sign for everything, including 0's and NaNs */
*sign = 1;
word0(&d) &= ~Sign_bit; /* clear sign bit */
}
else
*sign = 0;
#if defined(IEEE_Arith) + defined(VAX)
#ifdef IEEE_Arith
if ((word0(&d) & Exp_mask) == Exp_mask)
#else
if (word0(&d) == 0x8000)
#endif
{
/* Infinity or NaN */
*decpt = 9999;
#ifdef IEEE_Arith
if (!word1(&d) && !(word0(&d) & 0xfffff))
return nrv_alloc("Infinity", rve, 8);
#endif
return nrv_alloc("NaN", rve, 3);
}
#endif
#ifdef IBM
dval(&d) += 0; /* normalize */
#endif
if (!dval(&d)) {
*decpt = 1;
return nrv_alloc("0", rve, 1);
}
#ifdef SET_INEXACT
try_quick = oldinexact = get_inexact();
inexact = 1;
#endif
#ifdef Honor_FLT_ROUNDS
if (Rounding >= 2) {
if (*sign)
Rounding = Rounding == 2 ? 0 : 2;
else
if (Rounding != 2)
Rounding = 0;
}
#endif
b = d2b(dval(&d), &be, &bbits);
#ifdef Sudden_Underflow
i = (int)(word0(&d) >> Exp_shift1 & (Exp_mask>>Exp_shift1));
#else
if (( i = (int)(word0(&d) >> Exp_shift1 & (Exp_mask>>Exp_shift1)) )!=0) {
#endif
dval(&d2) = dval(&d);
word0(&d2) &= Frac_mask1;
word0(&d2) |= Exp_11;
#ifdef IBM
if (( j = 11 - hi0bits(word0(&d2) & Frac_mask) )!=0)
dval(&d2) /= 1 << j;
#endif
/* log(x) ~=~ log(1.5) + (x-1.5)/1.5
* log10(x) = log(x) / log(10)
* ~=~ log(1.5)/log(10) + (x-1.5)/(1.5*log(10))
* log10(&d) = (i-Bias)*log(2)/log(10) + log10(&d2)
*
* This suggests computing an approximation k to log10(&d) by
*
* k = (i - Bias)*0.301029995663981
* + ( (d2-1.5)*0.289529654602168 + 0.176091259055681 );
*
* We want k to be too large rather than too small.
* The error in the first-order Taylor series approximation
* is in our favor, so we just round up the constant enough
* to compensate for any error in the multiplication of
* (i - Bias) by 0.301029995663981; since |i - Bias| <= 1077,
* and 1077 * 0.30103 * 2^-52 ~=~ 7.2e-14,
* adding 1e-13 to the constant term more than suffices.
* Hence we adjust the constant term to 0.1760912590558.
* (We could get a more accurate k by invoking log10,
* but this is probably not worthwhile.)
*/
i -= Bias;
#ifdef IBM
i <<= 2;
i += j;
#endif
#ifndef Sudden_Underflow
denorm = 0;
}
else {
/* d is denormalized */
i = bbits + be + (Bias + (P-1) - 1);
x = i > 32 ? word0(&d) << (64 - i) | word1(&d) >> (i - 32)
: word1(&d) << (32 - i);
dval(&d2) = x;
word0(&d2) -= 31*Exp_msk1; /* adjust exponent */
i -= (Bias + (P-1) - 1) + 1;
denorm = 1;
}
#endif
ds = (dval(&d2)-1.5)*0.289529654602168 + 0.1760912590558 + i*0.301029995663981;
k = (int)ds;
if (ds < 0. && ds != k)
k--; /* want k = floor(ds) */
k_check = 1;
if (k >= 0 && k <= Ten_pmax) {
if (dval(&d) < tens[k])
k--;
k_check = 0;
}
j = bbits - i - 1;
if (j >= 0) {
b2 = 0;
s2 = j;
}
else {
b2 = -j;
s2 = 0;
}
if (k >= 0) {
b5 = 0;
s5 = k;
s2 += k;
}
else {
b2 -= k;
b5 = -k;
s5 = 0;
}
if (mode < 0 || mode > 9)
mode = 0;
#ifndef SET_INEXACT
#ifdef Check_FLT_ROUNDS
try_quick = Rounding == 1;
#else
try_quick = 1;
#endif
#endif /*SET_INEXACT*/
if (mode > 5) {
mode -= 4;
try_quick = 0;
}
leftright = 1;
ilim = ilim1 = -1; /* Values for cases 0 and 1; done here to */
/* silence erroneous "gcc -Wall" warning. */
switch(mode) {
case 0:
case 1:
i = 18;
ndigits = 0;
break;
case 2:
leftright = 0;
/* no break */
case 4:
if (ndigits <= 0)
ndigits = 1;
ilim = ilim1 = i = ndigits;
break;
case 3:
leftright = 0;
/* no break */
case 5:
i = ndigits + k + 1;
ilim = i;
ilim1 = i - 1;
if (i <= 0)
i = 1;
}
s = s0 = rv_alloc(i);
#ifdef Honor_FLT_ROUNDS
if (mode > 1 && Rounding != 1)
leftright = 0;
#endif
if (ilim >= 0 && ilim <= Quick_max && try_quick) {
/* Try to get by with floating-point arithmetic. */
i = 0;
dval(&d2) = dval(&d);
k0 = k;
ilim0 = ilim;
ieps = 2; /* conservative */
if (k > 0) {
ds = tens[k&0xf];
j = k >> 4;
if (j & Bletch) {
/* prevent overflows */
j &= Bletch - 1;
dval(&d) /= bigtens[n_bigtens-1];
ieps++;
}
for(; j; j >>= 1, i++)
if (j & 1) {
ieps++;
ds *= bigtens[i];
}
dval(&d) /= ds;
}
else if (( j1 = -k )!=0) {
dval(&d) *= tens[j1 & 0xf];
for(j = j1 >> 4; j; j >>= 1, i++)
if (j & 1) {
ieps++;
dval(&d) *= bigtens[i];
}
}
if (k_check && dval(&d) < 1. && ilim > 0) {
if (ilim1 <= 0)
goto fast_failed;
ilim = ilim1;
k--;
dval(&d) *= 10.;
ieps++;
}
dval(&eps) = ieps*dval(&d) + 7.;
word0(&eps) -= (P-1)*Exp_msk1;
if (ilim == 0) {
S = mhi = 0;
dval(&d) -= 5.;
if (dval(&d) > dval(&eps))
goto one_digit;
if (dval(&d) < -dval(&eps))
goto no_digits;
goto fast_failed;
}
#ifndef No_leftright
if (leftright) {
/* Use Steele & White method of only
* generating digits needed.
*/
dval(&eps) = 0.5/tens[ilim-1] - dval(&eps);
for(i = 0;;) {
L = (Long)dval(&d);
dval(&d) -= L;
*s++ = '0' + (int)L;
if (dval(&d) < dval(&eps))
goto ret1;
if (1. - dval(&d) < dval(&eps))
goto bump_up;
if (++i >= ilim)
break;
dval(&eps) *= 10.;
dval(&d) *= 10.;
}
}
else {
#endif
/* Generate ilim digits, then fix them up. */
dval(&eps) *= tens[ilim-1];
for(i = 1;; i++, dval(&d) *= 10.) {
L = (Long)(dval(&d));
if (!(dval(&d) -= L))
ilim = i;
*s++ = '0' + (int)L;
if (i == ilim) {
if (dval(&d) > 0.5 + dval(&eps))
goto bump_up;
else if (dval(&d) < 0.5 - dval(&eps)) {
while(*--s == '0');
s++;
goto ret1;
}
break;
}
}
#ifndef No_leftright
}
#endif
fast_failed:
s = s0;
dval(&d) = dval(&d2);
k = k0;
ilim = ilim0;
}
/* Do we have a "small" integer? */
if (be >= 0 && k <= Int_max) {
/* Yes. */
ds = tens[k];
if (ndigits < 0 && ilim <= 0) {
S = mhi = 0;
if (ilim < 0 || dval(&d) <= 5*ds)
goto no_digits;
goto one_digit;
}
for(i = 1;; i++, dval(&d) *= 10.) {
L = (Long)(dval(&d) / ds);
dval(&d) -= L*ds;
#ifdef Check_FLT_ROUNDS
/* If FLT_ROUNDS == 2, L will usually be high by 1 */
if (dval(&d) < 0) {
L--;
dval(&d) += ds;
}
#endif
*s++ = '0' + (int)L;
if (!dval(&d)) {
#ifdef SET_INEXACT
inexact = 0;
#endif
break;
}
if (i == ilim) {
#ifdef Honor_FLT_ROUNDS
if (mode > 1)
switch(Rounding) {
case 0: goto ret1;
case 2: goto bump_up;
}
#endif
dval(&d) += dval(&d);
#ifdef ROUND_BIASED
if (dval(&d) >= ds)
#else
if (dval(&d) > ds || (dval(&d) == ds && L & 1))
#endif
{
bump_up:
while(*--s == '9')
if (s == s0) {
k++;
*s = '0';
break;
}
++*s++;
}
break;
}
}
goto ret1;
}
m2 = b2;
m5 = b5;
mhi = mlo = 0;
if (leftright) {
i =
#ifndef Sudden_Underflow
denorm ? be + (Bias + (P-1) - 1 + 1) :
#endif
#ifdef IBM
1 + 4*P - 3 - bbits + ((bbits + be - 1) & 3);
#else
1 + P - bbits;
#endif
b2 += i;
s2 += i;
mhi = i2b(1);
}
if (m2 > 0 && s2 > 0) {
i = m2 < s2 ? m2 : s2;
b2 -= i;
m2 -= i;
s2 -= i;
}
if (b5 > 0) {
if (leftright) {
if (m5 > 0) {
mhi = pow5mult(mhi, m5);
b1 = mult(mhi, b);
Bfree(b);
b = b1;
}
if (( j = b5 - m5 )!=0)
b = pow5mult(b, j);
}
else
b = pow5mult(b, b5);
}
S = i2b(1);
if (s5 > 0)
S = pow5mult(S, s5);
/* Check for special case that d is a normalized power of 2. */
spec_case = 0;
if ((mode < 2 || leftright)
#ifdef Honor_FLT_ROUNDS
&& Rounding == 1
#endif
) {
if (!word1(&d) && !(word0(&d) & Bndry_mask)
#ifndef Sudden_Underflow
&& word0(&d) & (Exp_mask & ~Exp_msk1)
#endif
) {
/* The special case */
b2 += Log2P;
s2 += Log2P;
spec_case = 1;
}
}
/* Arrange for convenient computation of quotients:
* shift left if necessary so divisor has 4 leading 0 bits.
*
* Perhaps we should just compute leading 28 bits of S once
* and for all and pass them and a shift to quorem, so it
* can do shifts and ors to compute the numerator for q.
*/
#ifdef Pack_32
if (( i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0x1f )!=0)
i = 32 - i;
#else
if (( i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0xf )!=0)
i = 16 - i;
#endif
if (i > 4) {
i -= 4;
b2 += i;
m2 += i;
s2 += i;
}
else if (i < 4) {
i += 28;
b2 += i;
m2 += i;
s2 += i;
}
if (b2 > 0)
b = lshift(b, b2);
if (s2 > 0)
S = lshift(S, s2);
if (k_check) {
if (cmp(b,S) < 0) {
k--;
b = multadd(b, 10, 0); /* we botched the k estimate */
if (leftright)
mhi = multadd(mhi, 10, 0);
ilim = ilim1;
}
}
if (ilim <= 0 && (mode == 3 || mode == 5)) {
if (ilim < 0 || cmp(b,S = multadd(S,5,0)) <= 0) {
/* no digits, fcvt style */
no_digits:
k = -1 - ndigits;
goto ret;
}
one_digit:
*s++ = '1';
k++;
goto ret;
}
if (leftright) {
if (m2 > 0)
mhi = lshift(mhi, m2);
/* Compute mlo -- check for special case
* that d is a normalized power of 2.
*/
mlo = mhi;
if (spec_case) {
mhi = Balloc(mhi->k);
Bcopy(mhi, mlo);
mhi = lshift(mhi, Log2P);
}
for(i = 1;;i++) {
dig = quorem(b,S) + '0';
/* Do we yet have the shortest decimal string
* that will round to d?
*/
j = cmp(b, mlo);
delta = diff(S, mhi);
j1 = delta->sign ? 1 : cmp(b, delta);
Bfree(delta);
#ifndef ROUND_BIASED
if (j1 == 0 && mode != 1 && !(word1(&d) & 1)
#ifdef Honor_FLT_ROUNDS
&& Rounding >= 1
#endif
) {
if (dig == '9')
goto round_9_up;
if (j > 0)
dig++;
#ifdef SET_INEXACT
else if (!b->x[0] && b->wds <= 1)
inexact = 0;
#endif
*s++ = dig;
goto ret;
}
#endif
if (j < 0 || (j == 0 && mode != 1
#ifndef ROUND_BIASED
&& !(word1(&d) & 1)
#endif
)) {
if (!b->x[0] && b->wds <= 1) {
#ifdef SET_INEXACT
inexact = 0;
#endif
goto accept_dig;
}
#ifdef Honor_FLT_ROUNDS
if (mode > 1)
switch(Rounding) {
case 0: goto accept_dig;
case 2: goto keep_dig;
}
#endif /*Honor_FLT_ROUNDS*/
if (j1 > 0) {
b = lshift(b, 1);
j1 = cmp(b, S);
#ifdef ROUND_BIASED
if (j1 >= 0 /*)*/
#else
if ((j1 > 0 || (j1 == 0 && dig & 1))
#endif
&& dig++ == '9')
goto round_9_up;
}
accept_dig:
*s++ = dig;
goto ret;
}
if (j1 > 0) {
#ifdef Honor_FLT_ROUNDS
if (!Rounding)
goto accept_dig;
#endif
if (dig == '9') { /* possible if i == 1 */
round_9_up:
*s++ = '9';
goto roundoff;
}
*s++ = dig + 1;
goto ret;
}
#ifdef Honor_FLT_ROUNDS
keep_dig:
#endif
*s++ = dig;
if (i == ilim)
break;
b = multadd(b, 10, 0);
if (mlo == mhi)
mlo = mhi = multadd(mhi, 10, 0);
else {
mlo = multadd(mlo, 10, 0);
mhi = multadd(mhi, 10, 0);
}
}
}
else
for(i = 1;; i++) {
*s++ = dig = quorem(b,S) + '0';
if (!b->x[0] && b->wds <= 1) {
#ifdef SET_INEXACT
inexact = 0;
#endif
goto ret;
}
if (i >= ilim)
break;
b = multadd(b, 10, 0);
}
/* Round off last digit */
#ifdef Honor_FLT_ROUNDS
switch(Rounding) {
case 0: goto trimzeros;
case 2: goto roundoff;
}
#endif
b = lshift(b, 1);
j = cmp(b, S);
#ifdef ROUND_BIASED
if (j >= 0)
#else
if (j > 0 || (j == 0 && dig & 1))
#endif
{
roundoff:
while(*--s == '9')
if (s == s0) {
k++;
*s++ = '1';
goto ret;
}
++*s++;
}
else {
#ifdef Honor_FLT_ROUNDS
trimzeros:
#endif
while(*--s == '0');
s++;
}
ret:
Bfree(S);
if (mhi) {
if (mlo && mlo != mhi)
Bfree(mlo);
Bfree(mhi);
}
ret1:
#ifdef SET_INEXACT
if (inexact) {
if (!oldinexact) {
word0(&d) = Exp_1 + (70 << Exp_shift);
word1(&d) = 0;
dval(&d) += 1.;
}
}
else if (!oldinexact)
clear_inexact();
#endif
Bfree(b);
*s = 0;
*decpt = k + 1;
if (rve)
*rve = s;
return s0;
}

119
libraries/gdtoa/g_Qfmt.c
View File

@ -1,119 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#endif
#ifdef IEEE_8087
#define _0 3
#define _1 2
#define _2 1
#define _3 0
#endif
char*
#ifdef KR_headers
g_Qfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; size_t bufsize;
#else
g_Qfmt(char *buf, void *V, int ndig, size_t bufsize)
#endif
{
static FPI fpi0 = { 113, 1-16383-113+1, 32766 - 16383 - 113 + 1, 1, 0, Int_max };
char *b, *s, *se;
ULong bits[4], *L, sign;
int decpt, ex, i, mode;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
if (ndig < 0)
ndig = 0;
if (bufsize < (size_t)(ndig + 10))
return 0;
L = (ULong*)V;
sign = L[_0] & 0x80000000L;
bits[3] = L[_0] & 0xffff;
bits[2] = L[_1];
bits[1] = L[_2];
bits[0] = L[_3];
b = buf;
if ( (ex = (L[_0] & 0x7fff0000L) >> 16) !=0) {
if (ex == 0x7fff) {
/* Infinity or NaN */
if (bits[0] | bits[1] | bits[2] | bits[3])
b = strcp(b, "NaN");
else {
b = buf;
if (sign)
*b++ = '-';
b = strcp(b, "Infinity");
}
return b;
}
i = STRTOG_Normal;
bits[3] |= 0x10000;
}
else if (bits[0] | bits[1] | bits[2] | bits[3]) {
i = STRTOG_Denormal;
ex = 1;
}
else {
#ifndef IGNORE_ZERO_SIGN
if (sign)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
ex -= 0x3fff + 112;
mode = 2;
if (ndig <= 0) {
if (bufsize < 48)
return 0;
mode = 0;
}
s = gdtoa(fpi, ex, bits, &i, mode, ndig, &decpt, &se);
return g__fmt(buf, s, se, decpt, sign, bufsize);
}

203
libraries/gdtoa/g__fmt.c
View File

@ -1,203 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#ifdef USE_LOCALE
#include "locale.h"
#endif
#ifndef ldus_QNAN0
#define ldus_QNAN0 0x7fff
#endif
#ifndef ldus_QNAN1
#define ldus_QNAN1 0xc000
#endif
#ifndef ldus_QNAN2
#define ldus_QNAN2 0
#endif
#ifndef ldus_QNAN3
#define ldus_QNAN3 0
#endif
#ifndef ldus_QNAN4
#define ldus_QNAN4 0
#endif
const char *InfName[6] = { "Infinity", "infinity", "INFINITY", "Inf", "inf", "INF" };
const char *NanName[3] = { "NaN", "nan", "NAN" };
ULong NanDflt_Q_D2A[4] = { 0xffffffff, 0xffffffff, 0xffffffff, 0x7fffffff };
ULong NanDflt_d_D2A[2] = { d_QNAN1, d_QNAN0 };
ULong NanDflt_f_D2A[1] = { f_QNAN };
ULong NanDflt_xL_D2A[3] = { 1, 0x80000000, 0x7fff0000 };
UShort NanDflt_ldus_D2A[5] = { ldus_QNAN4, ldus_QNAN3, ldus_QNAN2, ldus_QNAN1, ldus_QNAN0 };
char *
#ifdef KR_headers
g__fmt(b, s, se, decpt, sign, blen) char *b; char *s; char *se; int decpt; ULong sign; size_t blen;
#else
g__fmt(char *b, char *s, char *se, int decpt, ULong sign, size_t blen)
#endif
{
int i, j, k;
char *be, *s0;
size_t len;
#ifdef USE_LOCALE
#ifdef NO_LOCALE_CACHE
char *decimalpoint = localeconv()->decimal_point;
size_t dlen = strlen(decimalpoint);
#else
char *decimalpoint;
static char *decimalpoint_cache;
static size_t dlen;
if (!(s0 = decimalpoint_cache)) {
s0 = localeconv()->decimal_point;
dlen = strlen(s0);
if ((decimalpoint_cache = (char*)MALLOC(strlen(s0) + 1))) {
strcpy(decimalpoint_cache, s0);
s0 = decimalpoint_cache;
}
}
decimalpoint = s0;
#endif
#else
#define dlen 0
#endif
s0 = s;
len = (se-s) + dlen + 6; /* 6 = sign + e+dd + trailing null */
if (blen < len)
goto ret0;
be = b + blen - 1;
if (sign)
*b++ = '-';
if (decpt <= -4 || decpt > se - s + 5) {
*b++ = *s++;
if (*s) {
#ifdef USE_LOCALE
while((*b = *decimalpoint++))
++b;
#else
*b++ = '.';
#endif
while((*b = *s++) !=0)
b++;
}
*b++ = 'e';
/* sprintf(b, "%+.2d", decpt - 1); */
if (--decpt < 0) {
*b++ = '-';
decpt = -decpt;
}
else
*b++ = '+';
for(j = 2, k = 10; 10*k <= decpt; j++, k *= 10){}
for(;;) {
i = decpt / k;
if (b >= be)
goto ret0;
*b++ = i + '0';
if (--j <= 0)
break;
decpt -= i*k;
decpt *= 10;
}
*b = 0;
}
else if (decpt <= 0) {
#ifdef USE_LOCALE
while((*b = *decimalpoint++))
++b;
#else
*b++ = '.';
#endif
if (be < b - decpt + (se - s))
goto ret0;
for(; decpt < 0; decpt++)
*b++ = '0';
while((*b = *s++) != 0)
b++;
}
else {
while((*b = *s++) != 0) {
b++;
if (--decpt == 0 && *s) {
#ifdef USE_LOCALE
while(*b = *decimalpoint++)
++b;
#else
*b++ = '.';
#endif
}
}
if (b + decpt > be) {
ret0:
b = 0;
goto ret;
}
for(; decpt > 0; decpt--)
*b++ = '0';
*b = 0;
}
ret:
freedtoa(s0);
return b;
}
char *
add_nanbits_D2A(char *b, size_t blen, ULong *bits, int nb)
{
ULong t;
char *rv;
int i, j;
size_t L;
static char Hexdig[16] = "0123456789abcdef";
while(!bits[--nb])
if (!nb)
return b;
L = 8*nb + 3;
t = bits[nb];
do ++L; while((t >>= 4));
if (L > blen)
return b;
b += L;
*--b = 0;
rv = b;
*--b = /*(*/ ')';
for(i = 0; i < nb; ++i) {
t = bits[i];
for(j = 0; j < 8; ++j, t >>= 4)
*--b = Hexdig[t & 0xf];
}
t = bits[nb];
do *--b = Hexdig[t & 0xf]; while(t >>= 4);
*--b = '('; /*)*/
return rv;
}

171
libraries/gdtoa/g_ddfmt.c
View File

@ -1,171 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg@acm.org). */
#include "gdtoaimp.h"
#include <string.h>
char *
#ifdef KR_headers
g_ddfmt(buf, dd0, ndig, bufsize) char *buf; double *dd0; int ndig; size_t bufsize;
#else
g_ddfmt(char *buf, double *dd0, int ndig, size_t bufsize)
#endif
{
FPI fpi;
char *b, *s, *se;
ULong *L, bits0[4], *bits, *zx;
int bx, by, decpt, ex, ey, i, j, mode;
Bigint *x, *y, *z;
U *dd, ddx[2];
#ifdef Honor_FLT_ROUNDS /*{{*/
int Rounding;
#ifdef Trust_FLT_ROUNDS /*{{ only define this if FLT_ROUNDS really works! */
Rounding = Flt_Rounds;
#else /*}{*/
Rounding = 1;
switch(fegetround()) {
case FE_TOWARDZERO: Rounding = 0; break;
case FE_UPWARD: Rounding = 2; break;
case FE_DOWNWARD: Rounding = 3;
}
#endif /*}}*/
#else /*}{*/
#define Rounding FPI_Round_near
#endif /*}}*/
if (bufsize < 10 || bufsize < (size_t)(ndig + 8))
return 0;
dd = (U*)dd0;
L = dd->L;
if ((L[_0] & 0x7ff00000L) == 0x7ff00000L) {
/* Infinity or NaN */
if (L[_0] & 0xfffff || L[_1]) {
nanret:
return strcp(buf, "NaN");
}
if ((L[2+_0] & 0x7ff00000) == 0x7ff00000) {
if (L[2+_0] & 0xfffff || L[2+_1])
goto nanret;
if ((L[_0] ^ L[2+_0]) & 0x80000000L)
goto nanret; /* Infinity - Infinity */
}
infret:
b = buf;
if (L[_0] & 0x80000000L)
*b++ = '-';
return strcp(b, "Infinity");
}
if ((L[2+_0] & 0x7ff00000) == 0x7ff00000) {
L += 2;
if (L[_0] & 0xfffff || L[_1])
goto nanret;
goto infret;
}
if (dval(&dd[0]) + dval(&dd[1]) == 0.) {
b = buf;
#ifndef IGNORE_ZERO_SIGN
if (L[_0] & L[2+_0] & 0x80000000L)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
if ((L[_0] & 0x7ff00000L) < (L[2+_0] & 0x7ff00000L)) {
dval(&ddx[1]) = dval(&dd[0]);
dval(&ddx[0]) = dval(&dd[1]);
dd = ddx;
L = dd->L;
}
z = d2b(dval(&dd[0]), &ex, &bx);
if (dval(&dd[1]) == 0.)
goto no_y;
x = z;
y = d2b(dval(&dd[1]), &ey, &by);
if ( (i = ex - ey) !=0) {
if (i > 0) {
x = lshift(x, i);
ex = ey;
}
else
y = lshift(y, -i);
}
if ((L[_0] ^ L[2+_0]) & 0x80000000L) {
z = diff(x, y);
if (L[_0] & 0x80000000L)
z->sign = 1 - z->sign;
}
else {
z = sum(x, y);
if (L[_0] & 0x80000000L)
z->sign = 1;
}
Bfree(x);
Bfree(y);
no_y:
bits = zx = z->x;
for(i = 0; !*zx; zx++)
i += 32;
i += lo0bits(zx);
if (i) {
rshift(z, i);
ex += i;
}
fpi.nbits = z->wds * 32 - hi0bits(z->x[j = z->wds-1]);
if (fpi.nbits < 106) {
fpi.nbits = 106;
if (j < 3) {
for(i = 0; i <= j; i++)
bits0[i] = bits[i];
while(i < 4)
bits0[i++] = 0;
bits = bits0;
}
}
mode = 2;
if (ndig <= 0) {
if (bufsize < (size_t)((int)(fpi.nbits * .301029995664) + 10)) {
Bfree(z);
return 0;
}
mode = 0;
}
fpi.emin = 1-1023-53+1;
fpi.emax = 2046-1023-106+1;
fpi.rounding = Rounding;
fpi.sudden_underflow = 0;
fpi.int_max = Int_max;
i = STRTOG_Normal;
s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se);
b = g__fmt(buf, s, se, decpt, z->sign, bufsize);
Bfree(z);
return b;
}

95
libraries/gdtoa/g_dfmt.c
View File

@ -1,95 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
char*
#ifdef KR_headers
g_dfmt(buf, d, ndig, bufsize) char *buf; double *d; int ndig; size_t bufsize;
#else
g_dfmt(char *buf, double *d, int ndig, size_t bufsize)
#endif
{
static FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, 0, Int_max };
char *b, *s, *se;
ULong bits[2], *L, sign;
int decpt, ex, i, mode;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
if (ndig < 0)
ndig = 0;
if (bufsize < (size_t)(ndig + 10))
return 0;
L = (ULong*)d;
sign = L[_0] & 0x80000000L;
if ((L[_0] & 0x7ff00000) == 0x7ff00000) {
/* Infinity or NaN */
if (bufsize < 10)
return 0;
if (L[_0] & 0xfffff || L[_1]) {
return strcp(buf, "NaN");
}
b = buf;
if (sign)
*b++ = '-';
return strcp(b, "Infinity");
}
if (L[_1] == 0 && (L[_0] ^ sign) == 0 /*d == 0.*/) {
b = buf;
#ifndef IGNORE_ZERO_SIGN
if (L[_0] & 0x80000000L)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
bits[0] = L[_1];
bits[1] = L[_0] & 0xfffff;
if ( (ex = (L[_0] >> 20) & 0x7ff) !=0)
bits[1] |= 0x100000;
else
ex = 1;
ex -= 0x3ff + 52;
mode = 2;
if (ndig <= 0)
mode = 0;
i = STRTOG_Normal;
if (sign)
i = STRTOG_Normal | STRTOG_Neg;
s = gdtoa(fpi, ex, bits, &i, mode, ndig, &decpt, &se);
return g__fmt(buf, s, se, decpt, sign, bufsize);
}

93
libraries/gdtoa/g_ffmt.c
View File

@ -1,93 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
char*
#ifdef KR_headers
g_ffmt(buf, f, ndig, bufsize) char *buf; float *f; int ndig; size_t bufsize;
#else
g_ffmt(char *buf, float *f, int ndig, size_t bufsize)
#endif
{
static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, 0, 6 };
char *b, *s, *se;
ULong bits[1], *L, sign;
int decpt, ex, i, mode;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
if (ndig < 0)
ndig = 0;
if (bufsize < (size_t)(ndig + 10))
return 0;
L = (ULong*)f;
sign = L[0] & 0x80000000L;
if ((L[0] & 0x7f800000) == 0x7f800000) {
/* Infinity or NaN */
if (L[0] & 0x7fffff) {
return strcp(buf, "NaN");
}
b = buf;
if (sign)
*b++ = '-';
return strcp(b, "Infinity");
}
if (*f == 0.) {
b = buf;
#ifndef IGNORE_ZERO_SIGN
if (L[0] & 0x80000000L)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
bits[0] = L[0] & 0x7fffff;
if ( (ex = (L[0] >> 23) & 0xff) !=0)
bits[0] |= 0x800000;
else
ex = 1;
ex -= 0x7f + 23;
mode = 2;
if (ndig <= 0) {
if (bufsize < 16)
return 0;
mode = 0;
}
i = STRTOG_Normal;
s = gdtoa(fpi, ex, bits, &i, mode, ndig, &decpt, &se);
return g__fmt(buf, s, se, decpt, sign, bufsize);
}

113
libraries/gdtoa/g_xLfmt.c
View File

@ -1,113 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#endif
#ifdef IEEE_8087
#define _0 2
#define _1 1
#define _2 0
#endif
char*
#ifdef KR_headers
g_xLfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; size_t bufsize;
#else
g_xLfmt(char *buf, void *V, int ndig, size_t bufsize)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, 0, Int_max };
char *b, *s, *se;
ULong bits[2], *L, sign;
int decpt, ex, i, mode;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
if (ndig < 0)
ndig = 0;
if (bufsize < (size_t)(ndig + 10))
return 0;
L = (ULong*)V;
sign = L[_0] & 0x80000000L;
bits[1] = L[_1];
bits[0] = L[_2];
if ( (ex = (L[_0] >> 16) & 0x7fff) !=0) {
if (ex == 0x7fff) {
/* Infinity or NaN */
if (bits[0] | bits[1])
b = strcp(buf, "NaN");
else {
b = buf;
if (sign)
*b++ = '-';
b = strcp(b, "Infinity");
}
return b;
}
i = STRTOG_Normal;
}
else if (bits[0] | bits[1]) {
i = STRTOG_Denormal;
}
else {
b = buf;
#ifndef IGNORE_ZERO_SIGN
if (sign)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
ex -= 0x3fff + 63;
mode = 2;
if (ndig <= 0) {
if (bufsize < 32)
return 0;
mode = 0;
}
s = gdtoa(fpi, ex, bits, &i, mode, ndig, &decpt, &se);
return g__fmt(buf, s, se, decpt, sign, bufsize);
}

119
libraries/gdtoa/g_xfmt.c
View File

@ -1,119 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#define _4 4
#endif
#ifdef IEEE_8087
#define _0 4
#define _1 3
#define _2 2
#define _3 1
#define _4 0
#endif
char*
#ifdef KR_headers
g_xfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; size_t bufsize;
#else
g_xfmt(char *buf, void *V, int ndig, size_t bufsize)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, 0, Int_max };
char *b, *s, *se;
ULong bits[2], sign;
UShort *L;
int decpt, ex, i, mode;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
if (ndig < 0)
ndig = 0;
if (bufsize < (size_t)(ndig + 10))
return 0;
L = (UShort *)V;
sign = L[_0] & 0x8000;
bits[1] = (L[_1] << 16) | L[_2];
bits[0] = (L[_3] << 16) | L[_4];
if ( (ex = L[_0] & 0x7fff) !=0) {
if (ex == 0x7fff) {
/* Infinity or NaN */
if (!bits[0] && bits[1]== 0x80000000) {
b = buf;
if (sign)
*b++ = '-';
b = strcp(b, "Infinity");
}
else
b = strcp(buf, "NaN");
return b;
}
i = STRTOG_Normal;
}
else if (bits[0] | bits[1]) {
i = STRTOG_Denormal;
ex = 1;
}
else {
b = buf;
#ifndef IGNORE_ZERO_SIGN
if (sign)
*b++ = '-';
#endif
*b++ = '0';
*b = 0;
return b;
}
ex -= 0x3fff + 63;
mode = 2;
if (ndig <= 0) {
if (bufsize < 32)
return 0;
mode = 0;
}
s = gdtoa(fpi, ex, bits, &i, mode, ndig, &decpt, &se);
return g__fmt(buf, s, se, decpt, sign, bufsize);
}

764
libraries/gdtoa/gdtoa.c
View File

@ -1,764 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 1999 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
static Bigint *
#ifdef KR_headers
bitstob(bits, nbits, bbits) ULong *bits; int nbits; int *bbits;
#else
bitstob(ULong *bits, int nbits, int *bbits)
#endif
{
int i, k;
Bigint *b;
ULong *be, *x, *x0;
i = ULbits;
k = 0;
while(i < nbits) {
i <<= 1;
k++;
}
#ifndef Pack_32
if (!k)
k = 1;
#endif
b = Balloc(k);
be = bits + ((nbits - 1) >> kshift);
x = x0 = b->x;
do {
*x++ = *bits & ALL_ON;
#ifdef Pack_16
*x++ = (*bits >> 16) & ALL_ON;
#endif
} while(++bits <= be);
i = x - x0;
while(!x0[--i])
if (!i) {
b->wds = 0;
*bbits = 0;
goto ret;
}
b->wds = i + 1;
*bbits = i*ULbits + 32 - hi0bits(b->x[i]);
ret:
return b;
}
/* dtoa for IEEE arithmetic (dmg): convert double to ASCII string.
*
* Inspired by "How to Print Floating-Point Numbers Accurately" by
* Guy L. Steele, Jr. and Jon L. White [Proc. ACM SIGPLAN '90, pp. 112-126].
*
* Modifications:
* 1. Rather than iterating, we use a simple numeric overestimate
* to determine k = floor(log10(d)). We scale relevant
* quantities using O(log2(k)) rather than O(k) multiplications.
* 2. For some modes > 2 (corresponding to ecvt and fcvt), we don't
* try to generate digits strictly left to right. Instead, we
* compute with fewer bits and propagate the carry if necessary
* when rounding the final digit up. This is often faster.
* 3. Under the assumption that input will be rounded nearest,
* mode 0 renders 1e23 as 1e23 rather than 9.999999999999999e22.
* That is, we allow equality in stopping tests when the
* round-nearest rule will give the same floating-point value
* as would satisfaction of the stopping test with strict
* inequality.
* 4. We remove common factors of powers of 2 from relevant
* quantities.
* 5. When converting floating-point integers less than 1e16,
* we use floating-point arithmetic rather than resorting
* to multiple-precision integers.
* 6. When asked to produce fewer than 15 digits, we first try
* to get by with floating-point arithmetic; we resort to
* multiple-precision integer arithmetic only if we cannot
* guarantee that the floating-point calculation has given
* the correctly rounded result. For k requested digits and
* "uniformly" distributed input, the probability is
* something like 10^(k-15) that we must resort to the Long
* calculation.
*/
char *
gdtoa
#ifdef KR_headers
(fpi, be, bits, kindp, mode, ndigits, decpt, rve)
FPI *fpi; int be; ULong *bits;
int *kindp, mode, ndigits, *decpt; char **rve;
#else
(FPI *fpi, int be, ULong *bits, int *kindp, int mode, int ndigits, int *decpt, char **rve)
#endif
{
/* Arguments ndigits and decpt are similar to the second and third
arguments of ecvt and fcvt; trailing zeros are suppressed from
the returned string. If not null, *rve is set to point
to the end of the return value. If d is +-Infinity or NaN,
then *decpt is set to 9999.
be = exponent: value = (integer represented by bits) * (2 to the power of be).
mode:
0 ==> shortest string that yields d when read in
and rounded to nearest.
1 ==> like 0, but with Steele & White stopping rule;
e.g. with IEEE P754 arithmetic , mode 0 gives
1e23 whereas mode 1 gives 9.999999999999999e22.
2 ==> max(1,ndigits) significant digits. This gives a
return value similar to that of ecvt, except
that trailing zeros are suppressed.
3 ==> through ndigits past the decimal point. This
gives a return value similar to that from fcvt,
except that trailing zeros are suppressed, and
ndigits can be negative.
4-9 should give the same return values as 2-3, i.e.,
4 <= mode <= 9 ==> same return as mode
2 + (mode & 1). These modes are mainly for
debugging; often they run slower but sometimes
faster than modes 2-3.
4,5,8,9 ==> left-to-right digit generation.
6-9 ==> don't try fast floating-point estimate
(if applicable).
Values of mode other than 0-9 are treated as mode 0.
Sufficient space is allocated to the return value
to hold the suppressed trailing zeros.
*/
int bbits, b2, b5, be0, dig, i, ieps, ilim, ilim0, ilim1, inex;
int j, j1, k, k0, k_check, kind, leftright, m2, m5, nbits;
int rdir, s2, s5, spec_case, try_quick;
Long L;
Bigint *b, *b1, *delta, *mlo, *mhi, *mhi1, *S;
double d2, ds;
char *s, *s0;
U d, eps;
#ifndef MULTIPLE_THREADS
if (dtoa_result) {
freedtoa(dtoa_result);
dtoa_result = 0;
}
#endif
inex = 0;
kind = *kindp &= ~STRTOG_Inexact;
switch(kind & STRTOG_Retmask) {
case STRTOG_Zero:
goto ret_zero;
case STRTOG_Normal:
case STRTOG_Denormal:
break;
case STRTOG_Infinite:
*decpt = -32768;
return nrv_alloc("Infinity", rve, 8);
case STRTOG_NaN:
*decpt = -32768;
return nrv_alloc("NaN", rve, 3);
default:
return 0;
}
b = bitstob(bits, nbits = fpi->nbits, &bbits);
be0 = be;
if ( (i = trailz(b)) !=0) {
rshift(b, i);
be += i;
bbits -= i;
}
if (!b->wds) {
Bfree(b);
ret_zero:
*decpt = 1;
return nrv_alloc("0", rve, 1);
}
dval(&d) = b2d(b, &i);
i = be + bbits - 1;
word0(&d) &= Frac_mask1;
word0(&d) |= Exp_11;
#ifdef IBM
if ( (j = 11 - hi0bits(word0(&d) & Frac_mask)) !=0)
dval(&d) /= 1 << j;
#endif
/* log(x) ~=~ log(1.5) + (x-1.5)/1.5
* log10(x) = log(x) / log(10)
* ~=~ log(1.5)/log(10) + (x-1.5)/(1.5*log(10))
* log10(&d) = (i-Bias)*log(2)/log(10) + log10(d2)
*
* This suggests computing an approximation k to log10(&d) by
*
* k = (i - Bias)*0.301029995663981
* + ( (d2-1.5)*0.289529654602168 + 0.176091259055681 );
*
* We want k to be too large rather than too small.
* The error in the first-order Taylor series approximation
* is in our favor, so we just round up the constant enough
* to compensate for any error in the multiplication of
* (i - Bias) by 0.301029995663981; since |i - Bias| <= 1077,
* and 1077 * 0.30103 * 2^-52 ~=~ 7.2e-14,
* adding 1e-13 to the constant term more than suffices.
* Hence we adjust the constant term to 0.1760912590558.
* (We could get a more accurate k by invoking log10,
* but this is probably not worthwhile.)
*/
#ifdef IBM
i <<= 2;
i += j;
#endif
ds = (dval(&d)-1.5)*0.289529654602168 + 0.1760912590558 + i*0.301029995663981;
/* correct assumption about exponent range */
if ((j = i) < 0)
j = -j;
if ((j -= 1077) > 0)
ds += j * 7e-17;
k = (int)ds;
if (ds < 0. && ds != k)
k--; /* want k = floor(ds) */
k_check = 1;
#ifdef IBM
j = be + bbits - 1;
if ( (j1 = j & 3) !=0)
dval(&d) *= 1 << j1;
word0(&d) += j << Exp_shift - 2 & Exp_mask;
#else
word0(&d) += (be + bbits - 1) << Exp_shift;
#endif
if (k >= 0 && k <= Ten_pmax) {
if (dval(&d) < tens[k])
k--;
k_check = 0;
}
j = bbits - i - 1;
if (j >= 0) {
b2 = 0;
s2 = j;
}
else {
b2 = -j;
s2 = 0;
}
if (k >= 0) {
b5 = 0;
s5 = k;
s2 += k;
}
else {
b2 -= k;
b5 = -k;
s5 = 0;
}
if (mode < 0 || mode > 9)
mode = 0;
try_quick = 1;
if (mode > 5) {
mode -= 4;
try_quick = 0;
}
else if (i >= -4 - Emin || i < Emin)
try_quick = 0;
leftright = 1;
ilim = ilim1 = -1; /* Values for cases 0 and 1; done here to */
/* silence erroneous "gcc -Wall" warning. */
switch(mode) {
case 0:
case 1:
i = (int)(nbits * .30103) + 3;
ndigits = 0;
break;
case 2:
leftright = 0;
/* no break */
case 4:
if (ndigits <= 0)
ndigits = 1;
ilim = ilim1 = i = ndigits;
break;
case 3:
leftright = 0;
/* no break */
case 5:
i = ndigits + k + 1;
ilim = i;
ilim1 = i - 1;
if (i <= 0)
i = 1;
}
s = s0 = rv_alloc(i);
if ( (rdir = fpi->rounding - 1) !=0) {
if (rdir < 0)
rdir = 2;
if (kind & STRTOG_Neg)
rdir = 3 - rdir;
}
/* Now rdir = 0 ==> round near, 1 ==> round up, 2 ==> round down. */
if (ilim >= 0 && ilim <= Quick_max && try_quick && !rdir
#ifndef IMPRECISE_INEXACT
&& k == 0
#endif
) {
/* Try to get by with floating-point arithmetic. */
i = 0;
d2 = dval(&d);
#ifdef IBM
if ( (j = 11 - hi0bits(word0(&d) & Frac_mask)) !=0)
dval(&d) /= 1 << j;
#endif
k0 = k;
ilim0 = ilim;
ieps = 2; /* conservative */
if (k > 0) {
ds = tens[k&0xf];
j = k >> 4;
if (j & Bletch) {
/* prevent overflows */
j &= Bletch - 1;
dval(&d) /= bigtens[n_bigtens-1];
ieps++;
}
for(; j; j >>= 1, i++)
if (j & 1) {
ieps++;
ds *= bigtens[i];
}
}
else {
ds = 1.;
if ( (j1 = -k) !=0) {
dval(&d) *= tens[j1 & 0xf];
for(j = j1 >> 4; j; j >>= 1, i++)
if (j & 1) {
ieps++;
dval(&d) *= bigtens[i];
}
}
}
if (k_check && dval(&d) < 1. && ilim > 0) {
if (ilim1 <= 0)
goto fast_failed;
ilim = ilim1;
k--;
dval(&d) *= 10.;
ieps++;
}
dval(&eps) = ieps*dval(&d) + 7.;
word0(&eps) -= (P-1)*Exp_msk1;
if (ilim == 0) {
S = mhi = 0;
dval(&d) -= 5.;
if (dval(&d) > dval(&eps))
goto one_digit;
if (dval(&d) < -dval(&eps))
goto no_digits;
goto fast_failed;
}
#ifndef No_leftright
if (leftright) {
/* Use Steele & White method of only
* generating digits needed.
*/
dval(&eps) = ds*0.5/tens[ilim-1] - dval(&eps);
for(i = 0;;) {
L = (Long)(dval(&d)/ds);
dval(&d) -= L*ds;
*s++ = '0' + (int)L;
if (dval(&d) < dval(&eps)) {
if (dval(&d))
inex = STRTOG_Inexlo;
goto ret1;
}
if (ds - dval(&d) < dval(&eps))
goto bump_up;
if (++i >= ilim)
break;
dval(&eps) *= 10.;
dval(&d) *= 10.;
}
}
else {
#endif
/* Generate ilim digits, then fix them up. */
dval(&eps) *= tens[ilim-1];
for(i = 1;; i++, dval(&d) *= 10.) {
if ( (L = (Long)(dval(&d)/ds)) !=0)
dval(&d) -= L*ds;
*s++ = '0' + (int)L;
if (i == ilim) {
ds *= 0.5;
if (dval(&d) > ds + dval(&eps))
goto bump_up;
else if (dval(&d) < ds - dval(&eps)) {
if (dval(&d))
inex = STRTOG_Inexlo;
goto clear_trailing0;
}
break;
}
}
#ifndef No_leftright
}
#endif
fast_failed:
s = s0;
dval(&d) = d2;
k = k0;
ilim = ilim0;
}
/* Do we have a "small" integer? */
if (be >= 0 && k <= fpi->int_max) {
/* Yes. */
ds = tens[k];
if (ndigits < 0 && ilim <= 0) {
S = mhi = 0;
if (ilim < 0 || dval(&d) <= 5*ds)
goto no_digits;
goto one_digit;
}
for(i = 1;; i++, dval(&d) *= 10.) {
L = (Long)(dval(&d) / ds);
dval(&d) -= L*ds;
#ifdef Check_FLT_ROUNDS
/* If FLT_ROUNDS == 2, L will usually be high by 1 */
if (dval(&d) < 0) {
L--;
dval(&d) += ds;
}
#endif
*s++ = '0' + (int)L;
if (dval(&d) == 0.)
break;
if (i == ilim) {
if (rdir) {
if (rdir == 1)
goto bump_up;
inex = STRTOG_Inexlo;
goto ret1;
}
dval(&d) += dval(&d);
#ifdef ROUND_BIASED
if (dval(&d) >= ds)
#else
if (dval(&d) > ds || (dval(&d) == ds && L & 1))
#endif
{
bump_up:
inex = STRTOG_Inexhi;
while(*--s == '9')
if (s == s0) {
k++;
*s = '0';
break;
}
++*s++;
}
else {
inex = STRTOG_Inexlo;
clear_trailing0:
while(*--s == '0'){}
++s;
}
break;
}
}
goto ret1;
}
m2 = b2;
m5 = b5;
mhi = mlo = 0;
if (leftright) {
i = nbits - bbits;
if (be - i++ < fpi->emin && mode != 3 && mode != 5) {
/* denormal */
i = be - fpi->emin + 1;
if (mode >= 2 && ilim > 0 && ilim < i)
goto small_ilim;
}
else if (mode >= 2) {
small_ilim:
j = ilim - 1;
if (m5 >= j)
m5 -= j;
else {
s5 += j -= m5;
b5 += j;
m5 = 0;
}
if ((i = ilim) < 0) {
m2 -= i;
i = 0;
}
}
b2 += i;
s2 += i;
mhi = i2b(1);
}
if (m2 > 0 && s2 > 0) {
i = m2 < s2 ? m2 : s2;
b2 -= i;
m2 -= i;
s2 -= i;
}
if (b5 > 0) {
if (leftright) {
if (m5 > 0) {
mhi = pow5mult(mhi, m5);
b1 = mult(mhi, b);
Bfree(b);
b = b1;
}
if ( (j = b5 - m5) !=0)
b = pow5mult(b, j);
}
else
b = pow5mult(b, b5);
}
S = i2b(1);
if (s5 > 0)
S = pow5mult(S, s5);
/* Check for special case that d is a normalized power of 2. */
spec_case = 0;
if (mode < 2) {
if (bbits == 1 && be0 > fpi->emin + 1) {
/* The special case */
b2++;
s2++;
spec_case = 1;
}
}
/* Arrange for convenient computation of quotients:
* shift left if necessary so divisor has 4 leading 0 bits.
*
* Perhaps we should just compute leading 28 bits of S once
* and for all and pass them and a shift to quorem, so it
* can do shifts and ors to compute the numerator for q.
*/
i = ((s5 ? hi0bits(S->x[S->wds-1]) : ULbits - 1) - s2 - 4) & kmask;
m2 += i;
if ((b2 += i) > 0)
b = lshift(b, b2);
if ((s2 += i) > 0)
S = lshift(S, s2);
if (k_check) {
if (cmp(b,S) < 0) {
k--;
b = multadd(b, 10, 0); /* we botched the k estimate */
if (leftright)
mhi = multadd(mhi, 10, 0);
ilim = ilim1;
}
}
if (ilim <= 0 && mode > 2) {
if (ilim < 0 || cmp(b,S = multadd(S,5,0)) <= 0) {
/* no digits, fcvt style */
no_digits:
k = -1 - ndigits;
inex = STRTOG_Inexlo;
goto ret;
}
one_digit:
inex = STRTOG_Inexhi;
*s++ = '1';
k++;
goto ret;
}
if (leftright) {
if (m2 > 0)
mhi = lshift(mhi, m2);
/* Compute mlo -- check for special case
* that d is a normalized power of 2.
*/
mlo = mhi;
if (spec_case) {
mhi = Balloc(mhi->k);
Bcopy(mhi, mlo);
mhi = lshift(mhi, 1);
}
for(i = 1;;i++) {
dig = quorem(b,S) + '0';
/* Do we yet have the shortest decimal string
* that will round to d?
*/
j = cmp(b, mlo);
delta = diff(S, mhi);
j1 = delta->sign ? 1 : cmp(b, delta);
Bfree(delta);
#ifndef ROUND_BIASED
if (j1 == 0 && !mode && !(bits[0] & 1) && !rdir) {
if (dig == '9')
goto round_9_up;
if (j <= 0) {
if (b->wds > 1 || b->x[0])
inex = STRTOG_Inexlo;
}
else {
dig++;
inex = STRTOG_Inexhi;
}
*s++ = dig;
goto ret;
}
#endif
if (j < 0 || (j == 0 && !mode
#ifndef ROUND_BIASED
&& !(bits[0] & 1)
#endif
)) {
if (rdir && (b->wds > 1 || b->x[0])) {
if (rdir == 2) {
inex = STRTOG_Inexlo;
goto accept;
}
while (cmp(S,mhi) > 0) {
*s++ = dig;
mhi1 = multadd(mhi, 10, 0);
if (mlo == mhi)
mlo = mhi1;
mhi = mhi1;
b = multadd(b, 10, 0);
dig = quorem(b,S) + '0';
}
if (dig++ == '9')
goto round_9_up;
inex = STRTOG_Inexhi;
goto accept;
}
if (j1 > 0) {
b = lshift(b, 1);
j1 = cmp(b, S);
#ifdef ROUND_BIASED
if (j1 >= 0 /*)*/
#else
if ((j1 > 0 || (j1 == 0 && dig & 1))
#endif
&& dig++ == '9')
goto round_9_up;
inex = STRTOG_Inexhi;
}
if (b->wds > 1 || b->x[0])
inex = STRTOG_Inexlo;
accept:
*s++ = dig;
goto ret;
}
if (j1 > 0 && rdir != 2) {
if (dig == '9') { /* possible if i == 1 */
round_9_up:
*s++ = '9';
inex = STRTOG_Inexhi;
goto roundoff;
}
inex = STRTOG_Inexhi;
*s++ = dig + 1;
goto ret;
}
*s++ = dig;
if (i == ilim)
break;
b = multadd(b, 10, 0);
if (mlo == mhi)
mlo = mhi = multadd(mhi, 10, 0);
else {
mlo = multadd(mlo, 10, 0);
mhi = multadd(mhi, 10, 0);
}
}
}
else
for(i = 1;; i++) {
*s++ = dig = quorem(b,S) + '0';
if (i >= ilim)
break;
b = multadd(b, 10, 0);
}
/* Round off last digit */
if (rdir) {
if (rdir == 2 || (b->wds <= 1 && !b->x[0]))
goto chopzeros;
goto roundoff;
}
b = lshift(b, 1);
j = cmp(b, S);
#ifdef ROUND_BIASED
if (j >= 0)
#else
if (j > 0 || (j == 0 && dig & 1))
#endif
{
roundoff:
inex = STRTOG_Inexhi;
while(*--s == '9')
if (s == s0) {
k++;
*s++ = '1';
goto ret;
}
++*s++;
}
else {
chopzeros:
if (b->wds > 1 || b->x[0])
inex = STRTOG_Inexlo;
while(*--s == '0'){}
++s;
}
ret:
Bfree(S);
if (mhi) {
if (mlo && mlo != mhi)
Bfree(mlo);
Bfree(mhi);
}
ret1:
Bfree(b);
*s = 0;
*decpt = k + 1;
if (rve)
*rve = s;
*kindp |= inex;
return s0;
}

189
libraries/gdtoa/gdtoa.h
View File

@ -1,189 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#ifndef GDTOA_H_INCLUDED
#define GDTOA_H_INCLUDED
#if defined(_MSC_VER)
/* [RH] Generating arith.h strikes me as too cumbersome under Visual
* Studio, so here's the equivalent, given the limited number of
* architectures that MSC can target. (Itanium? Who cares about that?)
*/
#define IEEE_8087
#define Arith_Kind_ASL 1
#define Double_Align
#ifdef _M_X64
#define X64_bit_pointers
#endif
#elif defined(__APPLE__)
/* [BL] While generating the files may be easy, on OS X we have cross
* compiling to deal with, which means we can't run the generation
* program on the target.
*/
#if defined(__x86_64__) || defined(__arm64__)
#define IEEE_8087
#define Arith_Kind_ASL 1
#define Long int
#define Intcast (int)(long)
#define Double_Align
#define X64_bit_pointers
#else
#error Unsupported architecture
#endif
#else
#include "arith.h"
#endif
#include <stddef.h> /* for size_t */
#ifndef Long
#define Long int
#endif
#ifndef ULong
typedef unsigned Long ULong;
#endif
#ifndef UShort
typedef unsigned short UShort;
#endif
#ifndef ANSI
#ifdef KR_headers
#define ANSI(x) ()
#define Void /*nothing*/
#else
#define ANSI(x) x
#define Void void
#endif
#endif /* ANSI */
#ifndef CONST
#ifdef KR_headers
#define CONST /* blank */
#else
#define CONST const
#endif
#endif /* CONST */
enum { /* return values from strtodg */
STRTOG_Zero = 0,
STRTOG_Normal = 1,
STRTOG_Denormal = 2,
STRTOG_Infinite = 3,
STRTOG_NaN = 4,
STRTOG_NaNbits = 5,
STRTOG_NoNumber = 6,
STRTOG_Retmask = 7,
/* The following may be or-ed into one of the above values. */
STRTOG_Neg = 0x08, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */
STRTOG_Inexlo = 0x10, /* returned result rounded toward zero */
STRTOG_Inexhi = 0x20, /* returned result rounded away from zero */
STRTOG_Inexact = 0x30,
STRTOG_Underflow= 0x40,
STRTOG_Overflow = 0x80
};
typedef struct
FPI {
int nbits;
int emin;
int emax;
int rounding;
int sudden_underflow;
int int_max;
} FPI;
enum { /* FPI.rounding values: same as FLT_ROUNDS */
FPI_Round_zero = 0,
FPI_Round_near = 1,
FPI_Round_up = 2,
FPI_Round_down = 3
};
#ifdef __cplusplus
extern "C" {
#endif
extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt,
int *sign, char **rve));
extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
int mode, int ndigits, int *decpt, char **rve));
extern void freedtoa ANSI((char*));
//extern float strtof ANSI((CONST char *, char **));
//extern double strtod ANSI((CONST char *, char **));
extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*));
extern char* g_ddfmt ANSI((char*, double*, int, size_t));
extern char* g_ddfmt_p ANSI((char*, double*, int, size_t, int));
extern char* g_dfmt ANSI((char*, double*, int, size_t));
extern char* g_dfmt_p ANSI((char*, double*, int, size_t, int));
extern char* g_ffmt ANSI((char*, float*, int, size_t));
extern char* g_ffmt_p ANSI((char*, float*, int, size_t, int));
extern char* g_Qfmt ANSI((char*, void*, int, size_t));
extern char* g_Qfmt_p ANSI((char*, void*, int, size_t, int));
extern char* g_xfmt ANSI((char*, void*, int, size_t));
extern char* g_xfmt_p ANSI((char*, void*, int, size_t, int));
extern char* g_xLfmt ANSI((char*, void*, int, size_t));
extern char* g_xLfmt_p ANSI((char*, void*, int, size_t, int));
extern int strtoId ANSI((CONST char*, char**, double*, double*));
extern int strtoIdd ANSI((CONST char*, char**, double*, double*));
extern int strtoIf ANSI((CONST char*, char**, float*, float*));
extern int strtoIQ ANSI((CONST char*, char**, void*, void*));
extern int strtoIx ANSI((CONST char*, char**, void*, void*));
extern int strtoIxL ANSI((CONST char*, char**, void*, void*));
extern int strtord ANSI((CONST char*, char**, int, double*));
extern int strtordd ANSI((CONST char*, char**, int, double*));
extern int strtorf ANSI((CONST char*, char**, int, float*));
extern int strtorQ ANSI((CONST char*, char**, int, void*));
extern int strtorx ANSI((CONST char*, char**, int, void*));
extern int strtorxL ANSI((CONST char*, char**, int, void*));
#if 1
extern int strtodI ANSI((CONST char*, char**, double*));
extern int strtopd ANSI((CONST char*, char**, double*));
extern int strtopdd ANSI((CONST char*, char**, double*));
extern int strtopf ANSI((CONST char*, char**, float*));
extern int strtopQ ANSI((CONST char*, char**, void*));
extern int strtopx ANSI((CONST char*, char**, void*));
extern int strtopxL ANSI((CONST char*, char**, void*));
#else
#define strtopd(s,se,x) strtord(s,se,1,x)
#define strtopdd(s,se,x) strtordd(s,se,1,x)
#define strtopf(s,se,x) strtorf(s,se,1,x)
#define strtopQ(s,se,x) strtorQ(s,se,1,x)
#define strtopx(s,se,x) strtorx(s,se,1,x)
#define strtopxL(s,se,x) strtorxL(s,se,1,x)
#endif
#ifdef __cplusplus
}
#endif
#endif /* GDTOA_H_INCLUDED */

18
libraries/gdtoa/gdtoa_fltrnds.h
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@ -1,18 +0,0 @@
FPI *fpi, fpi1;
int Rounding;
#ifdef Trust_FLT_ROUNDS /*{{ only define this if FLT_ROUNDS really works! */
Rounding = Flt_Rounds;
#else /*}{*/
Rounding = 1;
switch(fegetround()) {
case FE_TOWARDZERO: Rounding = 0; break;
case FE_UPWARD: Rounding = 2; break;
case FE_DOWNWARD: Rounding = 3;
}
#endif /*}}*/
fpi = &fpi0;
if (Rounding != 1) {
fpi1 = fpi0;
fpi = &fpi1;
fpi1.rounding = Rounding;
}

674
libraries/gdtoa/gdtoaimp.h
View File

@ -1,674 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998-2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* This is a variation on dtoa.c that converts arbitary binary
floating-point formats to and from decimal notation. It uses
double-precision arithmetic internally, so there are still
various #ifdefs that adapt the calculations to the native
double-precision arithmetic (any of IEEE, VAX D_floating,
or IBM mainframe arithmetic).
Please send bug reports to David M. Gay (dmg at acm dot org,
with " at " changed at "@" and " dot " changed to ".").
*/
/* On a machine with IEEE extended-precision registers, it is
* necessary to specify double-precision (53-bit) rounding precision
* before invoking strtod or dtoa. If the machine uses (the equivalent
* of) Intel 80x87 arithmetic, the call
* _control87(PC_53, MCW_PC);
* does this with many compilers. Whether this or another call is
* appropriate depends on the compiler; for this to work, it may be
* necessary to #include "float.h" or another system-dependent header
* file.
*/
/* strtod for IEEE-, VAX-, and IBM-arithmetic machines.
*
* This strtod returns a nearest machine number to the input decimal
* string (or sets errno to ERANGE). With IEEE arithmetic, ties are
* broken by the IEEE round-even rule. Otherwise ties are broken by
* biased rounding (add half and chop).
*
* Inspired loosely by William D. Clinger's paper "How to Read Floating
* Point Numbers Accurately" [Proc. ACM SIGPLAN '90, pp. 112-126].
*
* Modifications:
*
* 1. We only require IEEE, IBM, or VAX double-precision
* arithmetic (not IEEE double-extended).
* 2. We get by with floating-point arithmetic in a case that
* Clinger missed -- when we're computing d * 10^n
* for a small integer d and the integer n is not too
* much larger than 22 (the maximum integer k for which
* we can represent 10^k exactly), we may be able to
* compute (d*10^k) * 10^(e-k) with just one roundoff.
* 3. Rather than a bit-at-a-time adjustment of the binary
* result in the hard case, we use floating-point
* arithmetic to determine the adjustment to within
* one bit; only in really hard cases do we need to
* compute a second residual.
* 4. Because of 3., we don't need a large table of powers of 10
* for ten-to-e (just some small tables, e.g. of 10^k
* for 0 <= k <= 22).
*/
/*
* #define IEEE_8087 for IEEE-arithmetic machines where the least
* significant byte has the lowest address.
* #define IEEE_MC68k for IEEE-arithmetic machines where the most
* significant byte has the lowest address.
* #define Long int on machines with 32-bit ints and 64-bit longs.
* #define Sudden_Underflow for IEEE-format machines without gradual
* underflow (i.e., that flush to zero on underflow).
* #define IBM for IBM mainframe-style floating-point arithmetic.
* #define VAX for VAX-style floating-point arithmetic (D_floating).
* #define No_leftright to omit left-right logic in fast floating-point
* computation of dtoa and gdtoa. This will cause modes 4 and 5 to be
* treated the same as modes 2 and 3 for some inputs.
* #define Check_FLT_ROUNDS if FLT_ROUNDS can assume the values 2 or 3.
* #define RND_PRODQUOT to use rnd_prod and rnd_quot (assembly routines
* that use extended-precision instructions to compute rounded
* products and quotients) with IBM.
* #define ROUND_BIASED for IEEE-format with biased rounding and arithmetic
* that rounds toward +Infinity.
* #define ROUND_BIASED_without_Round_Up for IEEE-format with biased
* rounding when the underlying floating-point arithmetic uses
* unbiased rounding. This prevent using ordinary floating-point
* arithmetic when the result could be computed with one rounding error.
* #define Inaccurate_Divide for IEEE-format with correctly rounded
* products but inaccurate quotients, e.g., for Intel i860.
* #define NO_LONG_LONG on machines that do not have a "long long"
* integer type (of >= 64 bits). On such machines, you can
* #define Just_16 to store 16 bits per 32-bit Long when doing
* high-precision integer arithmetic. Whether this speeds things
* up or slows things down depends on the machine and the number
* being converted. If long long is available and the name is
* something other than "long long", #define Llong to be the name,
* and if "unsigned Llong" does not work as an unsigned version of
* Llong, #define #ULLong to be the corresponding unsigned type.
* #define KR_headers for old-style C function headers.
* #define Bad_float_h if your system lacks a float.h or if it does not
* define some or all of DBL_DIG, DBL_MAX_10_EXP, DBL_MAX_EXP,
* FLT_RADIX, FLT_ROUNDS, and DBL_MAX.
* #define MALLOC your_malloc, where your_malloc(n) acts like malloc(n)
* if memory is available and otherwise does something you deem
* appropriate. If MALLOC is undefined, malloc will be invoked
* directly -- and assumed always to succeed. Similarly, if you
* want something other than the system's free() to be called to
* recycle memory acquired from MALLOC, #define FREE to be the
* name of the alternate routine. (FREE or free is only called in
* pathological cases, e.g., in a gdtoa call after a gdtoa return in
* mode 3 with thousands of digits requested.)
* #define Omit_Private_Memory to omit logic (added Jan. 1998) for making
* memory allocations from a private pool of memory when possible.
* When used, the private pool is PRIVATE_MEM bytes long: 2304 bytes,
* unless #defined to be a different length. This default length
* suffices to get rid of MALLOC calls except for unusual cases,
* such as decimal-to-binary conversion of a very long string of
* digits. When converting IEEE double precision values, the
* longest string gdtoa can return is about 751 bytes long. For
* conversions by strtod of strings of 800 digits and all gdtoa
* conversions of IEEE doubles in single-threaded executions with
* 8-byte pointers, PRIVATE_MEM >= 7400 appears to suffice; with
* 4-byte pointers, PRIVATE_MEM >= 7112 appears adequate.
* #define NO_INFNAN_CHECK if you do not wish to have INFNAN_CHECK
* #defined automatically on IEEE systems. On such systems,
* when INFNAN_CHECK is #defined, strtod checks
* for Infinity and NaN (case insensitively).
* When INFNAN_CHECK is #defined and No_Hex_NaN is not #defined,
* strtodg also accepts (case insensitively) strings of the form
* NaN(x), where x is a string of hexadecimal digits (optionally
* preceded by 0x or 0X) and spaces; if there is only one string
* of hexadecimal digits, it is taken for the fraction bits of the
* resulting NaN; if there are two or more strings of hexadecimal
* digits, each string is assigned to the next available sequence
* of 32-bit words of fractions bits (starting with the most
* significant), right-aligned in each sequence.
* Unless GDTOA_NON_PEDANTIC_NANCHECK is #defined, input "NaN(...)"
* is consumed even when ... has the wrong form (in which case the
* "(...)" is consumed but ignored).
* #define MULTIPLE_THREADS if the system offers preemptively scheduled
* multiple threads. In this case, you must provide (or suitably
* #define) two locks, acquired by ACQUIRE_DTOA_LOCK(n) and freed
* by FREE_DTOA_LOCK(n) for n = 0 or 1. (The second lock, accessed
* in pow5mult, ensures lazy evaluation of only one copy of high
* powers of 5; omitting this lock would introduce a small
* probability of wasting memory, but would otherwise be harmless.)
* You must also invoke freedtoa(s) to free the value s returned by
* dtoa. You may do so whether or not MULTIPLE_THREADS is #defined.
* #define IMPRECISE_INEXACT if you do not care about the setting of
* the STRTOG_Inexact bits in the special case of doing IEEE double
* precision conversions (which could also be done by the strtod in
* dtoa.c).
* #define NO_HEX_FP to disable recognition of C9x's hexadecimal
* floating-point constants.
* #define -DNO_ERRNO to suppress setting errno (in strtod.c and
* strtodg.c).
* #define NO_STRING_H to use private versions of memcpy.
* On some K&R systems, it may also be necessary to
* #define DECLARE_SIZE_T in this case.
* #define USE_LOCALE to use the current locale's decimal_point value.
*/
#ifndef GDTOAIMP_H_INCLUDED
#define GDTOAIMP_H_INCLUDED
#include "gdtoa.h"
#if defined(_MSC_VER)
/* [RH] Generating gd_qnan.h strikes me as too cumbersome under Visual
* Studio, so here's the equivalent, given the limited number of
* architectures that MSC can target. (Itanium? Who cares about that?)
*/
#define f_QNAN 0xffc00000
#define d_QNAN0 0x0
#define d_QNAN1 0xfff80000
#define ld_QNAN0 0x0
#define ld_QNAN1 0xfff80000
#define ld_QNAN2 0x0
#define ld_QNAN3 0x0
#define ldus_QNAN0 0x0
#define ldus_QNAN1 0x0
#define ldus_QNAN2 0x0
#define ldus_QNAN3 0xfff8
#define ldus_QNAN4 0x0
/* [RH] Interestingly, MinGW produces something different because
* it turns out that it has a true long double type. I thought that
* all ia32 compilers had phased out extended precision.
*/
#elif defined(__APPLE__)
#if defined(__x86_64__) || defined(__arm64__)
#define f_QNAN 0xffc00000
#define d_QNAN0 0x0
#define d_QNAN1 0xfff80000
#define ld_QNAN0 0x0
#define ld_QNAN1 0xc0000000
#define ld_QNAN2 0xffff
#define ld_QNAN3 0x0
#define ldus_QNAN0 0x0
#define ldus_QNAN1 0x0
#define ldus_QNAN2 0x0
#define ldus_QNAN3 0xc000
#define ldus_QNAN4 0xffff
#else
#error Unsupported architecture
#endif
#else
#include "gd_qnan.h"
#endif
#ifdef Honor_FLT_ROUNDS
#include <fenv.h>
#endif
#ifdef DEBUG
#include "stdio.h"
#define Bug(x) {fprintf(stderr, "%s\n", x); exit(1);}
#endif
#include "stdlib.h"
#include "string.h"
#ifdef KR_headers
#define Char char
#else
#define Char void
#endif
#ifdef MALLOC
extern Char *MALLOC ANSI((size_t));
#else
#define MALLOC malloc
#endif
#undef IEEE_Arith
#undef Avoid_Underflow
#ifdef IEEE_MC68k
#define IEEE_Arith
#endif
#ifdef IEEE_8087
#define IEEE_Arith
#endif
#include "errno.h"
#ifdef Bad_float_h
#ifdef IEEE_Arith
#define DBL_DIG 15
#define DBL_MAX_10_EXP 308
#define DBL_MAX_EXP 1024
#define FLT_RADIX 2
#define DBL_MAX 1.7976931348623157e+308
#endif
#ifdef IBM
#define DBL_DIG 16
#define DBL_MAX_10_EXP 75
#define DBL_MAX_EXP 63
#define FLT_RADIX 16
#define DBL_MAX 7.2370055773322621e+75
#endif
#ifdef VAX
#define DBL_DIG 16
#define DBL_MAX_10_EXP 38
#define DBL_MAX_EXP 127
#define FLT_RADIX 2
#define DBL_MAX 1.7014118346046923e+38
#define n_bigtens 2
#endif
#ifndef LONG_MAX
#define LONG_MAX 2147483647
#endif
#else /* ifndef Bad_float_h */
#include "float.h"
#endif /* Bad_float_h */
#ifdef IEEE_Arith
#define Scale_Bit 0x10
#define n_bigtens 5
#endif
#ifdef IBM
#define n_bigtens 3
#endif
#ifdef VAX
#define n_bigtens 2
#endif
#ifndef __MATH_H__
#include "math.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1
Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
#endif
typedef union { double d; ULong L[2]; } U;
#ifdef IEEE_8087
#define word0(x) (x)->L[1]
#define word1(x) (x)->L[0]
#else
#define word0(x) (x)->L[0]
#define word1(x) (x)->L[1]
#endif
#define dval(x) (x)->d
/* The following definition of Storeinc is appropriate for MIPS processors.
* An alternative that might be better on some machines is
* #define Storeinc(a,b,c) (*a++ = b << 16 | c & 0xffff)
*/
#if defined(IEEE_8087) + defined(VAX)
#define Storeinc(a,b,c) (((unsigned short *)a)[1] = (unsigned short)b, \
((unsigned short *)a)[0] = (unsigned short)c, a++)
#else
#define Storeinc(a,b,c) (((unsigned short *)a)[0] = (unsigned short)b, \
((unsigned short *)a)[1] = (unsigned short)c, a++)
#endif
/* #define P DBL_MANT_DIG */
/* Ten_pmax = floor(P*log(2)/log(5)) */
/* Bletch = (highest power of 2 < DBL_MAX_10_EXP) / 16 */
/* Quick_max = floor((P-1)*log(FLT_RADIX)/log(10) - 1) */
/* Int_max = floor(P*log(FLT_RADIX)/log(10) - 1) */
#ifdef IEEE_Arith
#define Exp_shift 20
#define Exp_shift1 20
#define Exp_msk1 0x100000
#define Exp_msk11 0x100000
#define Exp_mask 0x7ff00000
#define P 53
#define Bias 1023
#define Emin (-1022)
#define Exp_1 0x3ff00000
#define Exp_11 0x3ff00000
#define Ebits 11
#define Frac_mask 0xfffff
#define Frac_mask1 0xfffff
#define Ten_pmax 22
#define Bletch 0x10
#define Bndry_mask 0xfffff
#define Bndry_mask1 0xfffff
#define LSB 1
#define Sign_bit 0x80000000
#define Log2P 1
#define Tiny0 0
#define Tiny1 1
#define Quick_max 14
#define Int_max 14
#ifndef Flt_Rounds
#ifdef FLT_ROUNDS
#define Flt_Rounds FLT_ROUNDS
#else
#define Flt_Rounds 1
#endif
#endif /*Flt_Rounds*/
#else /* ifndef IEEE_Arith */
#undef Sudden_Underflow
#define Sudden_Underflow
#ifdef IBM
#undef Flt_Rounds
#define Flt_Rounds 0
#define Exp_shift 24
#define Exp_shift1 24
#define Exp_msk1 0x1000000
#define Exp_msk11 0x1000000
#define Exp_mask 0x7f000000
#define P 14
#define Bias 65
#define Exp_1 0x41000000
#define Exp_11 0x41000000
#define Ebits 8 /* exponent has 7 bits, but 8 is the right value in b2d */
#define Frac_mask 0xffffff
#define Frac_mask1 0xffffff
#define Bletch 4
#define Ten_pmax 22
#define Bndry_mask 0xefffff
#define Bndry_mask1 0xffffff
#define LSB 1
#define Sign_bit 0x80000000
#define Log2P 4
#define Tiny0 0x100000
#define Tiny1 0
#define Quick_max 14
#define Int_max 15
#else /* VAX */
#undef Flt_Rounds
#define Flt_Rounds 1
#define Exp_shift 23
#define Exp_shift1 7
#define Exp_msk1 0x80
#define Exp_msk11 0x800000
#define Exp_mask 0x7f80
#define P 56
#define Bias 129
#define Exp_1 0x40800000
#define Exp_11 0x4080
#define Ebits 8
#define Frac_mask 0x7fffff
#define Frac_mask1 0xffff007f
#define Ten_pmax 24
#define Bletch 2
#define Bndry_mask 0xffff007f
#define Bndry_mask1 0xffff007f
#define LSB 0x10000
#define Sign_bit 0x8000
#define Log2P 1
#define Tiny0 0x80
#define Tiny1 0
#define Quick_max 15
#define Int_max 15
#endif /* IBM, VAX */
#endif /* IEEE_Arith */
#ifndef IEEE_Arith
#define ROUND_BIASED
#else
#ifdef ROUND_BIASED_without_Round_Up
#undef ROUND_BIASED
#define ROUND_BIASED
#endif
#endif
#ifdef RND_PRODQUOT
#define rounded_product(a,b) a = rnd_prod(a, b)
#define rounded_quotient(a,b) a = rnd_quot(a, b)
#ifdef KR_headers
extern double rnd_prod(), rnd_quot();
#else
extern double rnd_prod(double, double), rnd_quot(double, double);
#endif
#else
#define rounded_product(a,b) a *= b
#define rounded_quotient(a,b) a /= b
#endif
#define Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1))
#define Big1 0xffffffff
#undef Pack_16
#ifndef Pack_32
#define Pack_32
#endif
#ifdef NO_LONG_LONG
#undef ULLong
#ifdef Just_16
#undef Pack_32
#define Pack_16
/* When Pack_32 is not defined, we store 16 bits per 32-bit Long.
* This makes some inner loops simpler and sometimes saves work
* during multiplications, but it often seems to make things slightly
* slower. Hence the default is now to store 32 bits per Long.
*/
#endif
#else /* long long available */
#ifndef Llong
#define Llong long long
#endif
#ifndef ULLong
#define ULLong unsigned Llong
#endif
#endif /* NO_LONG_LONG */
#ifdef Pack_32
#define ULbits 32
#define kshift 5
#define kmask 31
#define ALL_ON 0xffffffff
#else
#define ULbits 16
#define kshift 4
#define kmask 15
#define ALL_ON 0xffff
#endif
//#ifndef MULTIPLE_THREADS
#define ACQUIRE_DTOA_LOCK(n) /*nothing*/
#define FREE_DTOA_LOCK(n) /*nothing*/
//#endif
#define Kmax 9
struct
Bigint {
struct Bigint *next;
int k, maxwds, sign, wds;
ULong x[1];
};
typedef struct Bigint Bigint;
#ifdef NO_STRING_H
#ifdef DECLARE_SIZE_T
typedef unsigned int size_t;
#endif
extern void memcpy_D2A ANSI((void*, const void*, size_t));
#define Bcopy(x,y) memcpy_D2A(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int))
#else /* !NO_STRING_H */
#define Bcopy(x,y) memcpy(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int))
#endif /* NO_STRING_H */
#define Balloc Balloc_D2A
#define Bfree Bfree_D2A
#define InfName InfName_D2A
#define NanName NanName_D2A
#define ULtoQ ULtoQ_D2A
#define ULtof ULtof_D2A
#define ULtod ULtod_D2A
#define ULtodd ULtodd_D2A
#define ULtox ULtox_D2A
#define ULtoxL ULtoxL_D2A
#define add_nanbits add_nanbits_D2A
#define any_on any_on_D2A
#define b2d b2d_D2A
#define bigtens bigtens_D2A
#define cmp cmp_D2A
#define copybits copybits_D2A
#define d2b d2b_D2A
#define decrement decrement_D2A
#define diff diff_D2A
#define dtoa_result dtoa_result_D2A
#define g__fmt g__fmt_D2A
#define gethex gethex_D2A
#define hexdig hexdig_D2A
#define hexnan hexnan_D2A
#define hi0bits(x) hi0bits_D2A((ULong)(x))
#define i2b i2b_D2A
#define increment increment_D2A
#define lo0bits lo0bits_D2A
#define lshift lshift_D2A
#define match match_D2A
#define mult mult_D2A
#define multadd multadd_D2A
#define nrv_alloc nrv_alloc_D2A
#define pow5mult pow5mult_D2A
#define quorem quorem_D2A
#define ratio ratio_D2A
#define rshift rshift_D2A
#define rv_alloc rv_alloc_D2A
#define s2b s2b_D2A
#define set_ones set_ones_D2A
#define strcp strcp_D2A
#define strtoIg strtoIg_D2A
#define sum sum_D2A
#define tens tens_D2A
#define tinytens tinytens_D2A
#define tinytens tinytens_D2A
#define trailz trailz_D2A
#define ulp ulp_D2A
extern char *add_nanbits ANSI((char*, size_t, ULong*, int));
extern char *dtoa_result;
extern CONST double bigtens[], tens[], tinytens[];
extern unsigned char hexdig[];
extern const char *InfName[6], *NanName[3];
extern Bigint *Balloc ANSI((int));
extern void Bfree ANSI((Bigint*));
extern void ULtof ANSI((ULong*, ULong*, Long, int));
extern void ULtod ANSI((ULong*, ULong*, Long, int));
extern void ULtodd ANSI((ULong*, ULong*, Long, int));
extern void ULtoQ ANSI((ULong*, ULong*, Long, int));
extern void ULtox ANSI((UShort*, ULong*, Long, int));
extern void ULtoxL ANSI((ULong*, ULong*, Long, int));
extern ULong any_on ANSI((Bigint*, int));
extern double b2d ANSI((Bigint*, int*));
extern int cmp ANSI((Bigint*, Bigint*));
extern void copybits ANSI((ULong*, int, Bigint*));
extern Bigint *d2b ANSI((double, int*, int*));
extern void decrement ANSI((Bigint*));
extern Bigint *diff ANSI((Bigint*, Bigint*));
extern char *dtoa ANSI((double d, int mode, int ndigits,
int *decpt, int *sign, char **rve));
extern char *g__fmt ANSI((char*, char*, char*, int, ULong, size_t));
extern int gethex ANSI((CONST char**, FPI*, Long*, Bigint**, int));
extern void hexdig_init_D2A(Void);
extern int hexnan ANSI((CONST char**, FPI*, ULong*));
extern int hi0bits_D2A ANSI((ULong));
extern Bigint *i2b ANSI((int));
extern Bigint *increment ANSI((Bigint*));
extern int lo0bits ANSI((ULong*));
extern Bigint *lshift ANSI((Bigint*, int));
extern int match ANSI((CONST char**, char*));
extern Bigint *mult ANSI((Bigint*, Bigint*));
extern Bigint *multadd ANSI((Bigint*, int, int));
extern char *nrv_alloc ANSI((char*, char **, int));
extern Bigint *pow5mult ANSI((Bigint*, int));
extern int quorem ANSI((Bigint*, Bigint*));
extern double ratio ANSI((Bigint*, Bigint*));
extern void rshift ANSI((Bigint*, int));
extern char *rv_alloc ANSI((int));
extern Bigint *s2b ANSI((CONST char*, int, int, ULong, int));
extern Bigint *set_ones ANSI((Bigint*, int));
extern char *strcp ANSI((char*, const char*));
extern int strtoIg ANSI((CONST char*, char**, FPI*, Long*, Bigint**, int*));
// extern double strtod ANSI((const char *s00, char **se));
extern Bigint *sum ANSI((Bigint*, Bigint*));
extern int trailz ANSI((Bigint*));
extern double ulp ANSI((U*));
#ifdef __cplusplus
}
#endif
/*
* NAN_WORD0 and NAN_WORD1 are only referenced in strtod.c. Prior to
* 20050115, they used to be hard-wired here (to 0x7ff80000 and 0,
* respectively), but now are determined by compiling and running
* qnan.c to generate gd_qnan.h, which specifies d_QNAN0 and d_QNAN1.
* Formerly gdtoaimp.h recommended supplying suitable -DNAN_WORD0=...
* and -DNAN_WORD1=... values if necessary. This should still work.
* (On HP Series 700/800 machines, -DNAN_WORD0=0x7ff40000 works.)
*/
#ifdef IEEE_Arith
#ifndef NO_INFNAN_CHECK
#undef INFNAN_CHECK
#define INFNAN_CHECK
#endif
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#ifndef NAN_WORD0
#define NAN_WORD0 d_QNAN0
#endif
#ifndef NAN_WORD1
#define NAN_WORD1 d_QNAN1
#endif
#else
#define _0 1
#define _1 0
#ifndef NAN_WORD0
#define NAN_WORD0 d_QNAN1
#endif
#ifndef NAN_WORD1
#define NAN_WORD1 d_QNAN0
#endif
#endif
#else
#undef INFNAN_CHECK
#endif
#undef SI
#ifdef Sudden_Underflow
#define SI 1
#else
#define SI 0
#endif
#endif /* GDTOAIMP_H_INCLUDED */

349
libraries/gdtoa/gethex.c
View File

@ -1,349 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#ifdef USE_LOCALE
#include "locale.h"
#endif
int
#ifdef KR_headers
gethex(sp, fpi, exp, bp, sign)
CONST char **sp; FPI *fpi; Long *exp; Bigint **bp; int sign;
#else
gethex( CONST char **sp, FPI *fpi, Long *exp, Bigint **bp, int sign)
#endif
{
Bigint *b;
CONST unsigned char *decpt, *s0, *s, *s1;
int big, esign, havedig, irv, j, k, n, n0, nbits, up, zret;
ULong L, lostbits, *x;
Long e, e1;
#ifdef USE_LOCALE
int i;
#ifdef NO_LOCALE_CACHE
const unsigned char *decimalpoint = (unsigned char*)localeconv()->decimal_point;
#else
const unsigned char *decimalpoint;
static unsigned char *decimalpoint_cache;
if (!(s0 = decimalpoint_cache)) {
s0 = (unsigned char*)localeconv()->decimal_point;
if ((decimalpoint_cache = (char*)MALLOC(strlen(s0) + 1))) {
strcpy(decimalpoint_cache, s0);
s0 = decimalpoint_cache;
}
}
decimalpoint = s0;
#endif
#endif
/**** if (!hexdig['0']) hexdig_init_D2A(); ****/
*bp = 0;
havedig = 0;
s0 = *(CONST unsigned char **)sp + 2;
while(s0[havedig] == '0')
havedig++;
s0 += havedig;
s = s0;
decpt = 0;
zret = 0;
e = 0;
if (hexdig[*s])
havedig++;
else {
zret = 1;
#ifdef USE_LOCALE
for(i = 0; decimalpoint[i]; ++i) {
if (s[i] != decimalpoint[i])
goto pcheck;
}
decpt = s += i;
#else
if (*s != '.')
goto pcheck;
decpt = ++s;
#endif
if (!hexdig[*s])
goto pcheck;
while(*s == '0')
s++;
if (hexdig[*s])
zret = 0;
havedig = 1;
s0 = s;
}
while(hexdig[*s])
s++;
#ifdef USE_LOCALE
if (*s == *decimalpoint && !decpt) {
for(i = 1; decimalpoint[i]; ++i) {
if (s[i] != decimalpoint[i])
goto pcheck;
}
decpt = s += i;
#else
if (*s == '.' && !decpt) {
decpt = ++s;
#endif
while(hexdig[*s])
s++;
}/*}*/
if (decpt)
e = -(((Long)(s-decpt)) << 2);
pcheck:
s1 = s;
big = esign = 0;
switch(*s) {
case 'p':
case 'P':
switch(*++s) {
case '-':
esign = 1;
/* no break */
case '+':
s++;
}
if ((n = hexdig[*s]) == 0 || n > 0x19) {
s = s1;
break;
}
e1 = n - 0x10;
while((n = hexdig[*++s]) !=0 && n <= 0x19) {
if (e1 & 0xf8000000)
big = 1;
e1 = 10*e1 + n - 0x10;
}
if (esign)
e1 = -e1;
e += e1;
}
*sp = (char*)s;
if (!havedig)
*sp = (char*)s0 - 1;
if (zret)
return STRTOG_Zero;
if (big) {
if (esign) {
switch(fpi->rounding) {
case FPI_Round_up:
if (sign)
break;
goto ret_tiny;
case FPI_Round_down:
if (!sign)
break;
goto ret_tiny;
}
goto retz;
ret_tiny:
b = Balloc(0);
b->wds = 1;
b->x[0] = 1;
goto dret;
}
switch(fpi->rounding) {
case FPI_Round_near:
goto ovfl1;
case FPI_Round_up:
if (!sign)
goto ovfl1;
goto ret_big;
case FPI_Round_down:
if (sign)
goto ovfl1;
goto ret_big;
}
ret_big:
nbits = fpi->nbits;
n0 = n = nbits >> kshift;
if (nbits & kmask)
++n;
for(j = n, k = 0; j >>= 1; ++k);
*bp = b = Balloc(k);
b->wds = n;
for(j = 0; j < n0; ++j)
b->x[j] = ALL_ON;
if (n > n0)
b->x[j] = ULbits >> (ULbits - (nbits & kmask));
*exp = fpi->emin;
return STRTOG_Normal | STRTOG_Inexlo;
}
n = s1 - s0 - 1;
for(k = 0; n > (1 << (kshift-2)) - 1; n >>= 1)
k++;
b = Balloc(k);
x = b->x;
n = 0;
L = 0;
#ifdef USE_LOCALE
for(i = 0; decimalpoint[i+1]; ++i);
#endif
while(s1 > s0) {
#ifdef USE_LOCALE
if (*--s1 == decimalpoint[i]) {
s1 -= i;
continue;
}
#else
if (*--s1 == '.')
continue;
#endif
if (n == ULbits) {
*x++ = L;
L = 0;
n = 0;
}
L |= (hexdig[*s1] & 0x0f) << n;
n += 4;
}
*x++ = L;
b->wds = n = x - b->x;
n = ULbits*n - hi0bits(L);
nbits = fpi->nbits;
lostbits = 0;
x = b->x;
if (n > nbits) {
n -= nbits;
if (any_on(b,n)) {
lostbits = 1;
k = n - 1;
if (x[k>>kshift] & 1 << (k & kmask)) {
lostbits = 2;
if (k > 0 && any_on(b,k))
lostbits = 3;
}
}
rshift(b, n);
e += n;
}
else if (n < nbits) {
n = nbits - n;
b = lshift(b, n);
e -= n;
x = b->x;
}
if (e > fpi->emax) {
ovfl:
Bfree(b);
ovfl1:
#ifndef NO_ERRNO
errno = ERANGE;
#endif
return STRTOG_Infinite | STRTOG_Overflow | STRTOG_Inexhi;
}
irv = STRTOG_Normal;
if (e < fpi->emin) {
irv = STRTOG_Denormal;
n = fpi->emin - e;
if (n >= nbits) {
switch (fpi->rounding) {
case FPI_Round_near:
if (n == nbits && (n < 2 || any_on(b,n-1)))
goto one_bit;
break;
case FPI_Round_up:
if (!sign)
goto one_bit;
break;
case FPI_Round_down:
if (sign) {
one_bit:
x[0] = b->wds = 1;
dret:
*bp = b;
*exp = fpi->emin;
#ifndef NO_ERRNO
errno = ERANGE;
#endif
return STRTOG_Denormal | STRTOG_Inexhi
| STRTOG_Underflow;
}
}
Bfree(b);
retz:
#ifndef NO_ERRNO
errno = ERANGE;
#endif
return STRTOG_Zero | STRTOG_Inexlo | STRTOG_Underflow;
}
k = n - 1;
if (lostbits)
lostbits = 1;
else if (k > 0)
lostbits = any_on(b,k);
if (x[k>>kshift] & 1 << (k & kmask))
lostbits |= 2;
nbits -= n;
rshift(b,n);
e = fpi->emin;
}
if (lostbits) {
up = 0;
switch(fpi->rounding) {
case FPI_Round_zero:
break;
case FPI_Round_near:
if (lostbits & 2
&& (lostbits | x[0]) & 1)
up = 1;
break;
case FPI_Round_up:
up = 1 - sign;
break;
case FPI_Round_down:
up = sign;
}
if (up) {
k = b->wds;
b = increment(b);
x = b->x;
if (irv == STRTOG_Denormal) {
if (nbits == fpi->nbits - 1
&& x[nbits >> kshift] & 1 << (nbits & kmask))
irv = STRTOG_Normal;
}
else if (b->wds > k
|| ((n = nbits & kmask) !=0
&& hi0bits(x[k-1]) < 32-n)) {
rshift(b,1);
if (++e > fpi->emax)
goto ovfl;
}
irv |= STRTOG_Inexhi;
}
else
irv |= STRTOG_Inexlo;
}
*bp = b;
*exp = e;
return irv;
}

86
libraries/gdtoa/gmisc.c
View File

@ -1,86 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
void
#ifdef KR_headers
rshift(b, k) Bigint *b; int k;
#else
rshift(Bigint *b, int k)
#endif
{
ULong *x, *x1, *xe, y;
int n;
x = x1 = b->x;
n = k >> kshift;
if (n < b->wds) {
xe = x + b->wds;
x += n;
if (k &= kmask) {
n = ULbits - k;
y = *x++ >> k;
while(x < xe) {
*x1++ = (y | (*x << n)) & ALL_ON;
y = *x++ >> k;
}
if ((*x1 = y) !=0)
x1++;
}
else
while(x < xe)
*x1++ = *x++;
}
if ((b->wds = x1 - b->x) == 0)
b->x[0] = 0;
}
int
#ifdef KR_headers
trailz(b) Bigint *b;
#else
trailz(Bigint *b)
#endif
{
ULong L, *x, *xe;
int n = 0;
x = b->x;
xe = x + b->wds;
for(n = 0; x < xe && !*x; x++)
n += ULbits;
if (x < xe) {
L = *x;
n += lo0bits(&L);
}
return n;
}

77
libraries/gdtoa/hd_init.c
View File

@ -1,77 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#if 0
unsigned char hexdig[256];
static void
#ifdef KR_headers
htinit(h, s, inc) unsigned char *h; unsigned char *s; int inc;
#else
htinit(unsigned char *h, unsigned char *s, int inc)
#endif
{
int i, j;
for(i = 0; (j = s[i]) !=0; i++)
h[j] = i + inc;
}
void
hexdig_init_D2A(Void) /* Use of hexdig_init omitted 20121220 to avoid a */
/* race condition when multiple threads are used. */
{
#define USC (unsigned char *)
htinit(hexdig, USC "0123456789", 0x10);
htinit(hexdig, USC "abcdef", 0x10 + 10);
htinit(hexdig, USC "ABCDEF", 0x10 + 10);
}
#else
unsigned char hexdig[256] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
16,17,18,19,20,21,22,23,24,25,0,0,0,0,0,0,
0,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
#endif

159
libraries/gdtoa/hexnan.c
View File

@ -1,159 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
static void
#ifdef KR_headers
L_shift(x, x1, i) ULong *x; ULong *x1; int i;
#else
L_shift(ULong *x, ULong *x1, int i)
#endif
{
int j;
i = 8 - i;
i <<= 2;
j = ULbits - i;
do {
*x |= x[1] << j;
x[1] >>= i;
} while(++x < x1);
}
int
#ifdef KR_headers
hexnan(sp, fpi, x0)
CONST char **sp; FPI *fpi; ULong *x0;
#else
hexnan( CONST char **sp, FPI *fpi, ULong *x0)
#endif
{
ULong c, h, *x, *x1, *xe;
CONST char *s;
int havedig, hd0, i, nbits;
/**** if (!hexdig['0']) hexdig_init_D2A(); ****/
nbits = fpi->nbits;
x = x0 + (nbits >> kshift);
if (nbits & kmask)
x++;
*--x = 0;
x1 = xe = x;
havedig = hd0 = i = 0;
s = *sp;
/* allow optional initial 0x or 0X */
while((c = *(CONST unsigned char*)(s+1)) && c <= ' ') {
if (!c)
goto retnan;
++s;
}
if (s[1] == '0' && (s[2] == 'x' || s[2] == 'X')
&& *(CONST unsigned char*)(s+3) > ' ')
s += 2;
while((c = *(CONST unsigned char*)++s)) {
if (!(h = hexdig[c])) {
if (c <= ' ') {
if (hd0 < havedig) {
if (x < x1 && i < 8)
L_shift(x, x1, i);
if (x <= x0) {
i = 8;
continue;
}
hd0 = havedig;
*--x = 0;
x1 = x;
i = 0;
}
while((c = *(CONST unsigned char*)(s+1)) <= ' ') {
if (!c)
goto retnan;
++s;
}
if (s[1] == '0' && (s[2] == 'x' || s[2] == 'X')
&& *(CONST unsigned char*)(s+3) > ' ')
s += 2;
continue;
}
if (/*(*/ c == ')' && havedig) {
*sp = s + 1;
break;
}
#ifndef GDTOA_NON_PEDANTIC_NANCHECK
do {
if (/*(*/ c == ')') {
*sp = s + 1;
goto break2;
}
} while((c = *++s));
#endif
retnan:
return STRTOG_NaN;
}
havedig++;
if (++i > 8) {
if (x <= x0)
continue;
i = 1;
*--x = 0;
}
*x = (*x << 4) | (h & 0xf);
}
#ifndef GDTOA_NON_PEDANTIC_NANCHECK
break2:
#endif
if (!havedig)
return STRTOG_NaN;
if (x < x1 && i < 8)
L_shift(x, x1, i);
if (x > x0) {
x1 = x0;
do *x1++ = *x++;
while(x <= xe);
do *x1++ = 0;
while(x1 <= xe);
}
else {
/* truncate high-order word if necessary */
if ( (i = nbits & (ULbits-1)) !=0)
*xe &= ((ULong)0xffffffff) >> (ULbits - i);
}
for(x1 = xe;; --x1) {
if (*x1 != 0)
break;
if (x1 == x0) {
*x1 = 1;
break;
}
}
return STRTOG_NaNbits;
}

875
libraries/gdtoa/misc.c
View File

@ -1,875 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 1999 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
static Bigint *freelist[Kmax+1];
#ifndef Omit_Private_Memory
#ifndef PRIVATE_MEM
#define PRIVATE_MEM 2304
#endif
#define PRIVATE_mem ((PRIVATE_MEM+sizeof(double)-1)/sizeof(double))
static double private_mem[PRIVATE_mem], *pmem_next = private_mem;
#endif
Bigint *
Balloc
#ifdef KR_headers
(k) int k;
#else
(int k)
#endif
{
int x;
Bigint *rv;
#ifndef Omit_Private_Memory
unsigned int len;
#endif
ACQUIRE_DTOA_LOCK(0);
/* The k > Kmax case does not need ACQUIRE_DTOA_LOCK(0), */
/* but this case seems very unlikely. */
if (k <= Kmax && (rv = freelist[k]) !=0) {
freelist[k] = rv->next;
}
else {
x = 1 << k;
#ifdef Omit_Private_Memory
rv = (Bigint *)MALLOC(sizeof(Bigint) + (x-1)*sizeof(ULong));
#else
len = (sizeof(Bigint) + (x-1)*sizeof(ULong) + sizeof(double) - 1)
/sizeof(double);
if (k <= Kmax && pmem_next - private_mem + len <= PRIVATE_mem) {
rv = (Bigint*)pmem_next;
pmem_next += len;
}
else
rv = (Bigint*)MALLOC(len*sizeof(double));
#endif
rv->k = k;
rv->maxwds = x;
}
FREE_DTOA_LOCK(0);
rv->sign = rv->wds = 0;
return rv;
}
void
Bfree
#ifdef KR_headers
(v) Bigint *v;
#else
(Bigint *v)
#endif
{
if (v) {
if (v->k > Kmax)
#ifdef FREE
FREE((void*)v);
#else
free((void*)v);
#endif
else {
ACQUIRE_DTOA_LOCK(0);
v->next = freelist[v->k];
freelist[v->k] = v;
FREE_DTOA_LOCK(0);
}
}
}
int
lo0bits
#ifdef KR_headers
(y) ULong *y;
#else
(ULong *y)
#endif
{
int k;
ULong x = *y;
if (x & 7) {
if (x & 1)
return 0;
if (x & 2) {
*y = x >> 1;
return 1;
}
*y = x >> 2;
return 2;
}
k = 0;
if (!(x & 0xffff)) {
k = 16;
x >>= 16;
}
if (!(x & 0xff)) {
k += 8;
x >>= 8;
}
if (!(x & 0xf)) {
k += 4;
x >>= 4;
}
if (!(x & 0x3)) {
k += 2;
x >>= 2;
}
if (!(x & 1)) {
k++;
x >>= 1;
if (!x)
return 32;
}
*y = x;
return k;
}
Bigint *
multadd
#ifdef KR_headers
(b, m, a) Bigint *b; int m, a;
#else
(Bigint *b, int m, int a) /* multiply by m and add a */
#endif
{
int i, wds;
#ifdef ULLong
ULong *x;
ULLong carry, y;
#else
ULong carry, *x, y;
#ifdef Pack_32
ULong xi, z;
#endif
#endif
Bigint *b1;
wds = b->wds;
x = b->x;
i = 0;
carry = a;
do {
#ifdef ULLong
y = *x * (ULLong)m + carry;
carry = y >> 32;
*x++ = (ULong)(y & 0xffffffffUL);
#else
#ifdef Pack_32
xi = *x;
y = (xi & 0xffff) * m + carry;
z = (xi >> 16) * m + (y >> 16);
carry = z >> 16;
*x++ = (z << 16) + (y & 0xffff);
#else
y = *x * m + carry;
carry = y >> 16;
*x++ = y & 0xffff;
#endif
#endif
}
while(++i < wds);
if (carry) {
if (wds >= b->maxwds) {
b1 = Balloc(b->k+1);
Bcopy(b1, b);
Bfree(b);
b = b1;
}
b->x[wds++] = (ULong)carry;
b->wds = wds;
}
return b;
}
int
hi0bits_D2A
#ifdef KR_headers
(x) ULong x;
#else
(ULong x)
#endif
{
int k = 0;
if (!(x & 0xffff0000)) {
k = 16;
x <<= 16;
}
if (!(x & 0xff000000)) {
k += 8;
x <<= 8;
}
if (!(x & 0xf0000000)) {
k += 4;
x <<= 4;
}
if (!(x & 0xc0000000)) {
k += 2;
x <<= 2;
}
if (!(x & 0x80000000)) {
k++;
if (!(x & 0x40000000))
return 32;
}
return k;
}
Bigint *
i2b
#ifdef KR_headers
(i) int i;
#else
(int i)
#endif
{
Bigint *b;
b = Balloc(1);
b->x[0] = i;
b->wds = 1;
return b;
}
Bigint *
mult
#ifdef KR_headers
(a, b) Bigint *a, *b;
#else
(Bigint *a, Bigint *b)
#endif
{
Bigint *c;
int k, wa, wb, wc;
ULong *x, *xa, *xae, *xb, *xbe, *xc, *xc0;
ULong y;
#ifdef ULLong
ULLong carry, z;
#else
ULong carry, z;
#ifdef Pack_32
ULong z2;
#endif
#endif
if (a->wds < b->wds) {
c = a;
a = b;
b = c;
}
k = a->k;
wa = a->wds;
wb = b->wds;
wc = wa + wb;
if (wc > a->maxwds)
k++;
c = Balloc(k);
for(x = c->x, xa = x + wc; x < xa; x++)
*x = 0;
xa = a->x;
xae = xa + wa;
xb = b->x;
xbe = xb + wb;
xc0 = c->x;
#ifdef ULLong
for(; xb < xbe; xc0++) {
if ( (y = *xb++) !=0) {
x = xa;
xc = xc0;
carry = 0;
do {
z = *x++ * (ULLong)y + *xc + carry;
carry = z >> 32;
*xc++ = (ULong)(z & 0xffffffffUL);
}
while(x < xae);
*xc = (ULong)carry;
}
}
#else
#ifdef Pack_32
for(; xb < xbe; xb++, xc0++) {
if ( (y = *xb & 0xffff) !=0) {
x = xa;
xc = xc0;
carry = 0;
do {
z = (*x & 0xffff) * y + (*xc & 0xffff) + carry;
carry = z >> 16;
z2 = (*x++ >> 16) * y + (*xc >> 16) + carry;
carry = z2 >> 16;
Storeinc(xc, z2, z);
}
while(x < xae);
*xc = carry;
}
if ( (y = *xb >> 16) !=0) {
x = xa;
xc = xc0;
carry = 0;
z2 = *xc;
do {
z = (*x & 0xffff) * y + (*xc >> 16) + carry;
carry = z >> 16;
Storeinc(xc, z, z2);
z2 = (*x++ >> 16) * y + (*xc & 0xffff) + carry;
carry = z2 >> 16;
}
while(x < xae);
*xc = z2;
}
}
#else
for(; xb < xbe; xc0++) {
if ( (y = *xb++) !=0) {
x = xa;
xc = xc0;
carry = 0;
do {
z = *x++ * y + *xc + carry;
carry = z >> 16;
*xc++ = z & 0xffff;
}
while(x < xae);
*xc = carry;
}
}
#endif
#endif
for(xc0 = c->x, xc = xc0 + wc; wc > 0 && !*--xc; --wc) ;
c->wds = wc;
return c;
}
static Bigint *p5s;
Bigint *
pow5mult
#ifdef KR_headers
(b, k) Bigint *b; int k;
#else
(Bigint *b, int k)
#endif
{
Bigint *b1, *p5, *p51;
int i;
static int p05[3] = { 5, 25, 125 };
if ( (i = k & 3) !=0)
b = multadd(b, p05[i-1], 0);
if (!(k >>= 2))
return b;
if ((p5 = p5s) == 0) {
/* first time */
#ifdef MULTIPLE_THREADS
ACQUIRE_DTOA_LOCK(1);
if (!(p5 = p5s)) {
p5 = p5s = i2b(625);
p5->next = 0;
}
FREE_DTOA_LOCK(1);
#else
p5 = p5s = i2b(625);
p5->next = 0;
#endif
}
for(;;) {
if (k & 1) {
b1 = mult(b, p5);
Bfree(b);
b = b1;
}
if (!(k >>= 1))
break;
if ((p51 = p5->next) == 0) {
#ifdef MULTIPLE_THREADS
ACQUIRE_DTOA_LOCK(1);
if (!(p51 = p5->next)) {
p51 = p5->next = mult(p5,p5);
p51->next = 0;
}
FREE_DTOA_LOCK(1);
#else
p51 = p5->next = mult(p5,p5);
p51->next = 0;
#endif
}
p5 = p51;
}
return b;
}
Bigint *
lshift
#ifdef KR_headers
(b, k) Bigint *b; int k;
#else
(Bigint *b, int k)
#endif
{
int i, k1, n, n1;
Bigint *b1;
ULong *x, *x1, *xe, z;
n = k >> kshift;
k1 = b->k;
n1 = n + b->wds + 1;
for(i = b->maxwds; n1 > i; i <<= 1)
k1++;
b1 = Balloc(k1);
x1 = b1->x;
for(i = 0; i < n; i++)
*x1++ = 0;
x = b->x;
xe = x + b->wds;
if (k &= kmask) {
#ifdef Pack_32
k1 = 32 - k;
z = 0;
do {
*x1++ = *x << k | z;
z = *x++ >> k1;
}
while(x < xe);
if ((*x1 = z) !=0)
++n1;
#else
k1 = 16 - k;
z = 0;
do {
*x1++ = *x << k & 0xffff | z;
z = *x++ >> k1;
}
while(x < xe);
if (*x1 = z)
++n1;
#endif
}
else do
*x1++ = *x++;
while(x < xe);
b1->wds = n1 - 1;
Bfree(b);
return b1;
}
int
cmp
#ifdef KR_headers
(a, b) Bigint *a, *b;
#else
(Bigint *a, Bigint *b)
#endif
{
ULong *xa, *xa0, *xb, *xb0;
int i, j;
i = a->wds;
j = b->wds;
#ifdef DEBUG
if (i > 1 && !a->x[i-1])
Bug("cmp called with a->x[a->wds-1] == 0");
if (j > 1 && !b->x[j-1])
Bug("cmp called with b->x[b->wds-1] == 0");
#endif
if (i -= j)
return i;
xa0 = a->x;
xa = xa0 + j;
xb0 = b->x;
xb = xb0 + j;
for(;;) {
if (*--xa != *--xb)
return *xa < *xb ? -1 : 1;
if (xa <= xa0)
break;
}
return 0;
}
Bigint *
diff
#ifdef KR_headers
(a, b) Bigint *a, *b;
#else
(Bigint *a, Bigint *b)
#endif
{
Bigint *c;
int i, wa, wb;
ULong *xa, *xae, *xb, *xbe, *xc;
#ifdef ULLong
ULLong borrow, y;
#else
ULong borrow, y;
#ifdef Pack_32
ULong z;
#endif
#endif
i = cmp(a,b);
if (!i) {
c = Balloc(0);
c->wds = 1;
c->x[0] = 0;
return c;
}
if (i < 0) {
c = a;
a = b;
b = c;
i = 1;
}
else
i = 0;
c = Balloc(a->k);
c->sign = i;
wa = a->wds;
xa = a->x;
xae = xa + wa;
wb = b->wds;
xb = b->x;
xbe = xb + wb;
xc = c->x;
borrow = 0;
#ifdef ULLong
do {
y = (ULLong)*xa++ - *xb++ - borrow;
borrow = y >> 32 & 1UL;
*xc++ = (ULong)(y & 0xffffffffUL);
}
while(xb < xbe);
while(xa < xae) {
y = *xa++ - borrow;
borrow = y >> 32 & 1UL;
*xc++ = (ULong)(y & 0xffffffffUL);
}
#else
#ifdef Pack_32
do {
y = (*xa & 0xffff) - (*xb & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
z = (*xa++ >> 16) - (*xb++ >> 16) - borrow;
borrow = (z & 0x10000) >> 16;
Storeinc(xc, z, y);
}
while(xb < xbe);
while(xa < xae) {
y = (*xa & 0xffff) - borrow;
borrow = (y & 0x10000) >> 16;
z = (*xa++ >> 16) - borrow;
borrow = (z & 0x10000) >> 16;
Storeinc(xc, z, y);
}
#else
do {
y = *xa++ - *xb++ - borrow;
borrow = (y & 0x10000) >> 16;
*xc++ = y & 0xffff;
}
while(xb < xbe);
while(xa < xae) {
y = *xa++ - borrow;
borrow = (y & 0x10000) >> 16;
*xc++ = y & 0xffff;
}
#endif
#endif
while(!*--xc)
wa--;
c->wds = wa;
return c;
}
double
b2d
#ifdef KR_headers
(a, e) Bigint *a; int *e;
#else
(Bigint *a, int *e)
#endif
{
ULong *xa, *xa0, w, y, z;
int k;
U d;
#ifdef VAX
ULong d0, d1;
#else
#define d0 word0(&d)
#define d1 word1(&d)
#endif
xa0 = a->x;
xa = xa0 + a->wds;
y = *--xa;
#ifdef DEBUG
if (!y) Bug("zero y in b2d");
#endif
k = hi0bits(y);
*e = 32 - k;
#ifdef Pack_32
if (k < Ebits) {
d0 = Exp_1 | y >> (Ebits - k);
w = xa > xa0 ? *--xa : 0;
d1 = y << ((32-Ebits) + k) | w >> (Ebits - k);
goto ret_d;
}
z = xa > xa0 ? *--xa : 0;
if (k -= Ebits) {
d0 = Exp_1 | y << k | z >> (32 - k);
y = xa > xa0 ? *--xa : 0;
d1 = z << k | y >> (32 - k);
}
else {
d0 = Exp_1 | y;
d1 = z;
}
#else
if (k < Ebits + 16) {
z = xa > xa0 ? *--xa : 0;
d0 = Exp_1 | y << k - Ebits | z >> Ebits + 16 - k;
w = xa > xa0 ? *--xa : 0;
y = xa > xa0 ? *--xa : 0;
d1 = z << k + 16 - Ebits | w << k - Ebits | y >> 16 + Ebits - k;
goto ret_d;
}
z = xa > xa0 ? *--xa : 0;
w = xa > xa0 ? *--xa : 0;
k -= Ebits + 16;
d0 = Exp_1 | y << k + 16 | z << k | w >> 16 - k;
y = xa > xa0 ? *--xa : 0;
d1 = w << k + 16 | y << k;
#endif
ret_d:
#ifdef VAX
word0(&d) = d0 >> 16 | d0 << 16;
word1(&d) = d1 >> 16 | d1 << 16;
#endif
return dval(&d);
}
#undef d0
#undef d1
Bigint *
d2b
#ifdef KR_headers
(dd, e, bits) double dd; int *e, *bits;
#else
(double dd, int *e, int *bits)
#endif
{
Bigint *b;
U d;
#ifndef Sudden_Underflow
int i;
#endif
int de, k;
ULong *x, y, z;
#ifdef VAX
ULong d0, d1;
#else
#define d0 word0(&d)
#define d1 word1(&d)
#endif
d.d = dd;
#ifdef VAX
d0 = word0(&d) >> 16 | word0(&d) << 16;
d1 = word1(&d) >> 16 | word1(&d) << 16;
#endif
#ifdef Pack_32
b = Balloc(1);
#else
b = Balloc(2);
#endif
x = b->x;
z = d0 & Frac_mask;
d0 &= 0x7fffffff; /* clear sign bit, which we ignore */
#ifdef Sudden_Underflow
de = (int)(d0 >> Exp_shift);
#ifndef IBM
z |= Exp_msk11;
#endif
#else
if ( (de = (int)(d0 >> Exp_shift)) !=0)
z |= Exp_msk1;
#endif
#ifdef Pack_32
if ( (y = d1) !=0) {
if ( (k = lo0bits(&y)) !=0) {
x[0] = y | z << (32 - k);
z >>= k;
}
else
x[0] = y;
#ifndef Sudden_Underflow
i =
#endif
b->wds = (x[1] = z) !=0 ? 2 : 1;
}
else {
k = lo0bits(&z);
x[0] = z;
#ifndef Sudden_Underflow
i =
#endif
b->wds = 1;
k += 32;
}
#else
if ( (y = d1) !=0) {
if ( (k = lo0bits(&y)) !=0)
if (k >= 16) {
x[0] = y | z << 32 - k & 0xffff;
x[1] = z >> k - 16 & 0xffff;
x[2] = z >> k;
i = 2;
}
else {
x[0] = y & 0xffff;
x[1] = y >> 16 | z << 16 - k & 0xffff;
x[2] = z >> k & 0xffff;
x[3] = z >> k+16;
i = 3;
}
else {
x[0] = y & 0xffff;
x[1] = y >> 16;
x[2] = z & 0xffff;
x[3] = z >> 16;
i = 3;
}
}
else {
#ifdef DEBUG
if (!z)
Bug("Zero passed to d2b");
#endif
k = lo0bits(&z);
if (k >= 16) {
x[0] = z;
i = 0;
}
else {
x[0] = z & 0xffff;
x[1] = z >> 16;
i = 1;
}
k += 32;
}
while(!x[i])
--i;
b->wds = i + 1;
#endif
#ifndef Sudden_Underflow
if (de) {
#endif
#ifdef IBM
*e = (de - Bias - (P-1) << 2) + k;
*bits = 4*P + 8 - k - hi0bits(word0(&d) & Frac_mask);
#else
*e = de - Bias - (P-1) + k;
*bits = P - k;
#endif
#ifndef Sudden_Underflow
}
else {
*e = de - Bias - (P-1) + 1 + k;
#ifdef Pack_32
*bits = 32*i - hi0bits(x[i-1]);
#else
*bits = (i+2)*16 - hi0bits(x[i]);
#endif
}
#endif
return b;
}
#undef d0
#undef d1
CONST double
#ifdef IEEE_Arith
bigtens[] = { 1e16, 1e32, 1e64, 1e128, 1e256 };
CONST double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, 1e-256
};
#else
#ifdef IBM
bigtens[] = { 1e16, 1e32, 1e64 };
CONST double tinytens[] = { 1e-16, 1e-32, 1e-64 };
#else
bigtens[] = { 1e16, 1e32 };
CONST double tinytens[] = { 1e-16, 1e-32 };
#endif
#endif
CONST double
tens[] = {
1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9,
1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19,
1e20, 1e21, 1e22
#ifdef VAX
, 1e23, 1e24
#endif
};
char *
#ifdef KR_headers
strcp_D2A(a, b) char *a; char *b;
#else
strcp_D2A(char *a, CONST char *b)
#endif
{
while((*a = *b++))
a++;
return a;
}
#ifdef NO_STRING_H
Char *
#ifdef KR_headers
memcpy_D2A(a, b, len) Char *a; Char *b; size_t len;
#else
memcpy_D2A(void *a1, void *b1, size_t len)
#endif
{
char *a = (char*)a1, *ae = a + len;
char *b = (char*)b1, *a0 = a;
while(a < ae)
*a++ = *b++;
return a0;
}
#endif /* NO_STRING_H */

119
libraries/gdtoa/qnan.c
View File

@ -1,119 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 2005 by David M. Gay
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that the copyright notice and this permission notice and warranty
disclaimer appear in supporting documentation, and that the name of
the author or any of his current or former employers not be used in
advertising or publicity pertaining to distribution of the software
without specific, written prior permission.
THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
NO EVENT SHALL THE AUTHOR OR ANY OF HIS CURRENT OR FORMER EMPLOYERS BE
LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
/* Program to compute quiet NaNs of various precisions (float, */
/* double, and perhaps long double) on the current system, */
/* provided the system uses binary IEEE (P754) arithmetic. */
/* Note that one system's quiet NaN may be a signaling NaN on */
/* another system. The IEEE arithmetic standards (P754, P854) */
/* do not specify how to distinguish signaling NaNs from quiet */
/* ones, and this detail varies across systems. The computed */
/* NaN values are encoded in #defines for values for an */
/* unsigned 32-bit integer type, called Ulong below, and */
/* (for long double) perhaps as unsigned short values. Once */
/* upon a time, there were PC compilers for Intel CPUs that */
/* had sizeof(long double) = 10. Are such compilers still */
/* distributed? */
#include <stdio.h>
#include "arith.h"
#ifndef Long
#define Long long
#endif
typedef unsigned Long Ulong;
#undef HAVE_IEEE
#ifdef IEEE_8087
#define _0 1
#define _1 0
#define _3 3
#if defined(Gen_ld_QNAN) && !defined(NO_LONG_LONG)
static int perm[4] = { 0, 1, 2, 3 };
#endif
#define HAVE_IEEE
#endif
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _3 0
#if defined(Gen_ld_QNAN) && !defined(NO_LONG_LONG)
static int perm[4] = { 3, 2, 1, 0 };
#endif
#define HAVE_IEEE
#endif
#define UL (unsigned long)
int
main(void)
{
#ifdef HAVE_IEEE
typedef union {
float f;
double d;
Ulong L[4];
#ifndef NO_LONG_LONG
unsigned short u[5];
long double D;
#endif
} U;
U a, b, c;
#if defined(Gen_ld_QNAN) && !defined(NO_LONG_LONG)
int i;
#endif
a.L[0] = b.L[0] = 0x7f800000;
c.f = a.f - b.f;
printf("#define f_QNAN 0x%lx\n", UL (c.L[0] & 0x7fffffff));
a.L[_0] = b.L[_0] = 0x7ff00000;
a.L[_1] = b.L[_1] = 0;
c.d = a.d - b.d; /* quiet NaN */
c.L[_0] &= 0x7fffffff;
printf("#define d_QNAN0 0x%lx\n", UL c.L[_0]);
printf("#define d_QNAN1 0x%lx\n", UL c.L[_1]);
#ifndef NO_LONG_LONG
#ifdef Gen_ld_QNAN
if (sizeof(a.D) >= 16) {
b.D = c.D = a.d;
if (printf("") < 0)
c.D = 37; /* never executed; just defeat optimization */
a.L[0] = a.L[1] = a.L[2] = a.L[3] = 0;
a.D = b.D - c.D;
a.L[_3] &= 0x7fffffff;
for(i = 0; i < 4; i++)
printf("#define ld_QNAN%d 0x%lx\n", i, UL a.L[perm[i]]);
}
#endif
#endif
#endif /* HAVE_IEEE */
return 0;
}

BIN
libraries/gdtoa/qnan.obj
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Binary file not shown.

191
libraries/gdtoa/smisc.c
View File

@ -1,191 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 1999 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
Bigint *
s2b
#ifdef KR_headers
(s, nd0, nd, y9, dplen) CONST char *s; int dplen, nd0, nd; ULong y9;
#else
(CONST char *s, int nd0, int nd, ULong y9, int dplen)
#endif
{
Bigint *b;
int i, k;
Long x, y;
x = (nd + 8) / 9;
for(k = 0, y = 1; x > y; y <<= 1, k++) ;
#ifdef Pack_32
b = Balloc(k);
b->x[0] = y9;
b->wds = 1;
#else
b = Balloc(k+1);
b->x[0] = y9 & 0xffff;
b->wds = (b->x[1] = y9 >> 16) ? 2 : 1;
#endif
i = 9;
if (9 < nd0) {
s += 9;
do b = multadd(b, 10, *s++ - '0');
while(++i < nd0);
s += dplen;
}
else
s += dplen + 9;
for(; i < nd; i++)
b = multadd(b, 10, *s++ - '0');
return b;
}
double
ratio
#ifdef KR_headers
(a, b) Bigint *a, *b;
#else
(Bigint *a, Bigint *b)
#endif
{
U da, db;
int k, ka, kb;
dval(&da) = b2d(a, &ka);
dval(&db) = b2d(b, &kb);
k = ka - kb + ULbits*(a->wds - b->wds);
#ifdef IBM
if (k > 0) {
word0(&da) += (k >> 2)*Exp_msk1;
if (k &= 3)
dval(&da) *= 1 << k;
}
else {
k = -k;
word0(&db) += (k >> 2)*Exp_msk1;
if (k &= 3)
dval(&db) *= 1 << k;
}
#else
if (k > 0)
word0(&da) += k*Exp_msk1;
else {
k = -k;
word0(&db) += k*Exp_msk1;
}
#endif
return dval(&da) / dval(&db);
}
#ifdef INFNAN_CHECK
int
match
#ifdef KR_headers
(sp, t) char **sp, *t;
#else
(CONST char **sp, char *t)
#endif
{
int c, d;
CONST char *s = *sp;
while( (d = *t++) !=0) {
if ((c = *++s) >= 'A' && c <= 'Z')
c += 'a' - 'A';
if (c != d)
return 0;
}
*sp = s + 1;
return 1;
}
#endif /* INFNAN_CHECK */
void
#ifdef KR_headers
copybits(c, n, b) ULong *c; int n; Bigint *b;
#else
copybits(ULong *c, int n, Bigint *b)
#endif
{
ULong *ce, *x, *xe;
#ifdef Pack_16
int nw, nw1;
#endif
ce = c + ((n-1) >> kshift) + 1;
x = b->x;
#ifdef Pack_32
xe = x + b->wds;
while(x < xe)
*c++ = *x++;
#else
nw = b->wds;
nw1 = nw & 1;
for(xe = x + (nw - nw1); x < xe; x += 2)
Storeinc(c, x[1], x[0]);
if (nw1)
*c++ = *x;
#endif
while(c < ce)
*c++ = 0;
}
ULong
#ifdef KR_headers
any_on(b, k) Bigint *b; int k;
#else
any_on(Bigint *b, int k)
#endif
{
int n, nwds;
ULong *x, *x0, x1, x2;
x = b->x;
nwds = b->wds;
n = k >> kshift;
if (n > nwds)
n = nwds;
else if (n < nwds && (k &= kmask)) {
x1 = x2 = x[n];
x1 >>= k;
x1 <<= k;
if (x1 != x2)
return 1;
}
x0 = x;
x += n;
while(x > x0)
if (*--x)
return 1;
return 0;
}

63
libraries/gdtoa/strtoIQ.c
View File

@ -1,63 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIQ(s, sp, a, b) CONST char *s; char **sp; void *a; void *b;
#else
strtoIQ(CONST char *s, char **sp, void *a, void *b)
#endif
{
static FPI fpi = { 113, 1-16383-113+1, 32766-16383-113+1, 1, SI };
Long exp[2];
Bigint *B[2];
int k, rv[2];
ULong *L = (ULong *)a, *M = (ULong *)b;
B[0] = Balloc(2);
B[0]->wds = 4;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtoQ(L, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtoQ(M, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else {
M[0] = L[0];
M[1] = L[1];
M[2] = L[2];
M[3] = L[3];
}
return k;
}

60
libraries/gdtoa/strtoId.c
View File

@ -1,60 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoId(s, sp, f0, f1) CONST char *s; char **sp; double *f0, *f1;
#else
strtoId(CONST char *s, char **sp, double *f0, double *f1)
#endif
{
static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
Long exp[2];
Bigint *B[2];
int k, rv[2];
B[0] = Balloc(1);
B[0]->wds = 2;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtod((ULong*)f0, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtod((ULong*)f1, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else {
((ULong*)f1)[0] = ((ULong*)f0)[0];
((ULong*)f1)[1] = ((ULong*)f0)[1];
}
return k;
}

66
libraries/gdtoa/strtoIdd.c
View File

@ -1,66 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIdd(s, sp, f0, f1) CONST char *s; char **sp; double *f0, *f1;
#else
strtoIdd(CONST char *s, char **sp, double *f0, double *f1)
#endif
{
#ifdef Sudden_Underflow
static FPI fpi = { 106, 1-1023, 2046-1023-106+1, 1, 1 };
#else
static FPI fpi = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 };
#endif
Long exp[2];
Bigint *B[2];
int k, rv[2];
B[0] = Balloc(2);
B[0]->wds = 4;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtodd((ULong*)f0, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtodd((ULong*)f1, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else {
((ULong*)f1)[0] = ((ULong*)f0)[0];
((ULong*)f1)[1] = ((ULong*)f0)[1];
((ULong*)f1)[2] = ((ULong*)f0)[2];
((ULong*)f1)[3] = ((ULong*)f0)[3];
}
return k;
}

58
libraries/gdtoa/strtoIf.c
View File

@ -1,58 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIf(s, sp, f0, f1) CONST char *s; char **sp; float *f0, *f1;
#else
strtoIf(CONST char *s, char **sp, float *f0, float *f1)
#endif
{
static FPI fpi = { 24, 1-127-24+1, 254-127-24+1, 1, SI };
Long exp[2];
Bigint *B[2];
int k, rv[2];
B[0] = Balloc(0);
B[0]->wds = 1;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtof((ULong*)f0, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtof((ULong*)f1, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else
*(ULong*)f1 = *(ULong*)f0;
return k;
}

137
libraries/gdtoa/strtoIg.c
View File

@ -1,137 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIg(s00, se, fpi, exp, B, rvp) CONST char *s00; char **se; FPI *fpi; Long *exp; Bigint **B; int *rvp;
#else
strtoIg(CONST char *s00, char **se, FPI *fpi, Long *exp, Bigint **B, int *rvp)
#endif
{
Bigint *b, *b1;
int i, nb, nw, nw1, rv, rv1, swap;
unsigned int nb1, nb11;
Long e1;
b = *B;
rv = strtodg(s00, se, fpi, exp, b->x);
if (!(rv & STRTOG_Inexact)) {
B[1] = 0;
return *rvp = rv;
}
e1 = exp[0];
rv1 = rv ^ STRTOG_Inexact;
b1 = Balloc(b->k);
Bcopy(b1, b);
nb = fpi->nbits;
nb1 = nb & 31;
nb11 = (nb1 - 1) & 31;
nw = b->wds;
nw1 = nw - 1;
if (rv & STRTOG_Inexlo) {
swap = 0;
b1 = increment(b1);
if ((rv & STRTOG_Retmask) == STRTOG_Zero) {
if (fpi->sudden_underflow) {
b1->x[0] = 0;
b1->x[nw1] = 1L << nb11;
rv1 += STRTOG_Normal - STRTOG_Zero;
rv1 &= ~STRTOG_Underflow;
goto swapcheck;
}
rv1 &= STRTOG_Inexlo | STRTOG_Underflow | STRTOG_Zero;
rv1 |= STRTOG_Inexhi | STRTOG_Denormal;
goto swapcheck;
}
if (b1->wds > nw
|| (nb1 && b1->x[nw1] & 1L << nb1)) {
if (++e1 > fpi->emax)
rv1 = STRTOG_Infinite | STRTOG_Inexhi;
rshift(b1, 1);
}
else if ((rv & STRTOG_Retmask) == STRTOG_Denormal) {
if (b1->x[nw1] & 1L << nb11) {
rv1 += STRTOG_Normal - STRTOG_Denormal;
rv1 &= ~STRTOG_Underflow;
}
}
}
else {
swap = STRTOG_Neg;
if ((rv & STRTOG_Retmask) == STRTOG_Infinite) {
b1 = set_ones(b1, nb);
e1 = fpi->emax;
rv1 = STRTOG_Normal | STRTOG_Inexlo;
goto swapcheck;
}
decrement(b1);
if ((rv & STRTOG_Retmask) == STRTOG_Denormal) {
for(i = nw1; !b1->x[i]; --i)
if (!i) {
rv1 = STRTOG_Zero | STRTOG_Inexlo;
break;
}
goto swapcheck;
}
if (!(b1->x[nw1] & 1L << nb11)) {
if (e1 == fpi->emin) {
if (fpi->sudden_underflow)
rv1 += STRTOG_Zero - STRTOG_Normal;
else
rv1 += STRTOG_Denormal - STRTOG_Normal;
rv1 |= STRTOG_Underflow;
}
else {
b1 = lshift(b1, 1);
b1->x[0] |= 1;
--e1;
}
}
}
swapcheck:
if (swap ^ (rv & STRTOG_Neg)) {
rvp[0] = rv1;
rvp[1] = rv;
B[0] = b1;
B[1] = b;
exp[1] = exp[0];
exp[0] = e1;
}
else {
rvp[0] = rv;
rvp[1] = rv1;
B[1] = b1;
exp[1] = e1;
}
return rv;
}

64
libraries/gdtoa/strtoIx.c
View File

@ -1,64 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIx(s, sp, a, b) CONST char *s; char **sp; void *a; void *b;
#else
strtoIx(CONST char *s, char **sp, void *a, void *b)
#endif
{
static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
Long exp[2];
Bigint *B[2];
int k, rv[2];
UShort *L = (UShort *)a, *M = (UShort *)b;
B[0] = Balloc(1);
B[0]->wds = 2;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtox(L, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtox(M, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else {
M[0] = L[0];
M[1] = L[1];
M[2] = L[2];
M[3] = L[3];
M[4] = L[4];
}
return k;
}

62
libraries/gdtoa/strtoIxL.c
View File

@ -1,62 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtoIxL(s, sp, a, b) CONST char *s; char **sp; void *a; void *b;
#else
strtoIxL(CONST char *s, char **sp, void *a, void *b)
#endif
{
static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
Long exp[2];
Bigint *B[2];
int k, rv[2];
ULong *L = (ULong *)a, *M = (ULong *)b;
B[0] = Balloc(1);
B[0]->wds = 2;
k = strtoIg(s, sp, &fpi, exp, B, rv);
ULtoxL(L, B[0]->x, exp[0], rv[0]);
Bfree(B[0]);
if (B[1]) {
ULtoxL(M, B[1]->x, exp[1], rv[1]);
Bfree(B[1]);
}
else {
M[0] = L[0];
M[1] = L[1];
M[2] = L[2];
}
return k;
}

1074
libraries/gdtoa/strtod.c
View File

File diff suppressed because it is too large Load Diff

163
libraries/gdtoa/strtodI.c
View File

@ -1,163 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
static double
#ifdef KR_headers
ulpdown(d) U *d;
#else
ulpdown(U *d)
#endif
{
double u;
ULong *L = d->L;
u = ulp(d);
if (!(L[_1] | (L[_0] & 0xfffff))
&& (L[_0] & 0x7ff00000) > 0x00100000)
u *= 0.5;
return u;
}
int
#ifdef KR_headers
strtodI(s, sp, dd) CONST char *s; char **sp; double *dd;
#else
strtodI(CONST char *s, char **sp, double *dd)
#endif
{
static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
ULong bits[2], sign;
Long exp;
int j, k;
U *u;
k = strtodg(s, sp, &fpi, &exp, bits);
u = (U*)dd;
sign = k & STRTOG_Neg ? 0x80000000L : 0;
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
dval(&u[0]) = dval(&u[1]) = 0.;
break;
case STRTOG_Zero:
dval(&u[0]) = dval(&u[1]) = 0.;
#ifdef Sudden_Underflow
if (k & STRTOG_Inexact) {
if (sign)
word0(&u[0]) = 0x80100000L;
else
word0(&u[1]) = 0x100000L;
}
break;
#else
goto contain;
#endif
case STRTOG_Denormal:
word1(&u[0]) = bits[0];
word0(&u[0]) = bits[1];
goto contain;
case STRTOG_Normal:
word1(&u[0]) = bits[0];
word0(&u[0]) = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20);
contain:
j = k & STRTOG_Inexact;
if (sign) {
word0(&u[0]) |= sign;
j = STRTOG_Inexact - j;
}
switch(j) {
case STRTOG_Inexlo:
#ifdef Sudden_Underflow
if ((u->L[_0] & 0x7ff00000) < 0x3500000) {
word0(&u[1]) = word0(&u[0]) + 0x3500000;
word1(&u[1]) = word1(&u[0]);
dval(&u[1]) += ulp(&u[1]);
word0(&u[1]) -= 0x3500000;
if (!(word0(&u[1]) & 0x7ff00000)) {
word0(&u[1]) = sign;
word1(&u[1]) = 0;
}
}
else
#endif
dval(&u[1]) = dval(&u[0]) + ulp(&u[0]);
break;
case STRTOG_Inexhi:
dval(&u[1]) = dval(&u[0]);
#ifdef Sudden_Underflow
if ((word0(&u[0]) & 0x7ff00000) < 0x3500000) {
word0(&u[0]) += 0x3500000;
dval(&u[0]) -= ulpdown(u);
word0(&u[0]) -= 0x3500000;
if (!(word0(&u[0]) & 0x7ff00000)) {
word0(&u[0]) = sign;
word1(&u[0]) = 0;
}
}
else
#endif
dval(&u[0]) -= ulpdown(u);
break;
default:
dval(&u[1]) = dval(&u[0]);
}
break;
case STRTOG_Infinite:
word0(&u[0]) = word0(&u[1]) = sign | 0x7ff00000;
word1(&u[0]) = word1(&u[1]) = 0;
if (k & STRTOG_Inexact) {
if (sign) {
word0(&u[1]) = 0xffefffffL;
word1(&u[1]) = 0xffffffffL;
}
else {
word0(&u[0]) = 0x7fefffffL;
word1(&u[0]) = 0xffffffffL;
}
}
break;
case STRTOG_NaN:
u->L[0] = (u+1)->L[0] = d_QNAN0;
u->L[1] = (u+1)->L[1] = d_QNAN1;
break;
case STRTOG_NaNbits:
word0(&u[0]) = word0(&u[1]) = 0x7ff00000 | sign | bits[1];
word1(&u[0]) = word1(&u[1]) = bits[0];
}
return k;
}

1065
libraries/gdtoa/strtodg.c
View File

File diff suppressed because it is too large Load Diff

87
libraries/gdtoa/strtodnrp.c
View File

@ -1,87 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 2004 by David M. Gay.
All Rights Reserved
Based on material in the rest of /netlib/fp/gdota.tar.gz,
which is copyright (C) 1998, 2000 by Lucent Technologies.
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* This is a variant of strtod that works on Intel ia32 systems */
/* with the default extended-precision arithmetic -- it does not */
/* require setting the precision control to 53 bits. */
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
double
#ifdef KR_headers
strtod(s, sp) CONST char *s; char **sp;
#else
strtod(CONST char *s, char **sp)
#endif
{
static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
ULong bits[2];
Long exp;
int k;
union { ULong L[2]; double d; } u;
k = strtodg(s, sp, &fpi, &exp, bits);
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
u.L[0] = u.L[1] = 0;
break;
case STRTOG_Normal:
u.L[_1] = bits[0];
u.L[_0] = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20);
break;
case STRTOG_Denormal:
u.L[_1] = bits[0];
u.L[_0] = bits[1];
break;
case STRTOG_Infinite:
u.L[_0] = 0x7ff00000;
u.L[_1] = 0;
break;
case STRTOG_NaN:
u.L[0] = d_QNAN0;
u.L[1] = d_QNAN1;
break;
case STRTOG_NaNbits:
u.L[_0] = 0x7ff00000 | bits[1];
u.L[_1] = bits[0];
}
if (k & STRTOG_Neg)
u.L[_0] |= 0x80000000L;
return u.d;
}

78
libraries/gdtoa/strtof.c
View File

@ -1,78 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
float
#ifdef KR_headers
strtof(s, sp) CONST char *s; char **sp;
#else
strtof(CONST char *s, char **sp)
#endif
{
static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, SI };
ULong bits[1];
Long exp;
int k;
union { ULong L[1]; float f; } u;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
u.L[0] = 0;
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
u.L[0] = (bits[0] & 0x7fffff) | ((exp + 0x7f + 23) << 23);
break;
case STRTOG_Denormal:
u.L[0] = bits[0];
break;
case STRTOG_Infinite:
u.L[0] = 0x7f800000;
break;
case STRTOG_NaN:
u.L[0] = f_QNAN;
}
if (k & STRTOG_Neg)
u.L[0] |= 0x80000000L;
return u.f;
}

109
libraries/gdtoa/strtopQ.c
View File

@ -1,109 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#endif
#ifdef IEEE_8087
#define _0 3
#define _1 2
#define _2 1
#define _3 0
#endif
extern ULong NanDflt_Q_D2A[4];
int
#ifdef KR_headers
strtopQ(s, sp, V) CONST char *s; char **sp; void *V;
#else
strtopQ(CONST char *s, char **sp, void *V)
#endif
{
static FPI fpi0 = { 113, 1-16383-113+1, 32766 - 16383 - 113 + 1, 1, SI };
ULong bits[4];
Long exp;
int k;
ULong *L = (ULong*)V;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = L[3] = 0;
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_3] = bits[0];
L[_2] = bits[1];
L[_1] = bits[2];
L[_0] = (bits[3] & ~0x10000) | ((exp + 0x3fff + 112) << 16);
break;
case STRTOG_Denormal:
L[_3] = bits[0];
L[_2] = bits[1];
L[_1] = bits[2];
L[_0] = bits[3];
break;
case STRTOG_Infinite:
L[_0] = 0x7fff0000;
L[_1] = L[_2] = L[_3] = 0;
break;
case STRTOG_NaN:
L[_0] = NanDflt_Q_D2A[3];
L[_1] = NanDflt_Q_D2A[2];
L[_2] = NanDflt_Q_D2A[1];
L[_3] = NanDflt_Q_D2A[0];
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
return k;
}

54
libraries/gdtoa/strtopd.c
View File

@ -1,54 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtopd(s, sp, d) char *s; char **sp; double *d;
#else
strtopd(CONST char *s, char **sp, double *d)
#endif
{
static FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
ULong bits[2];
Long exp;
int k;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
ULtod((ULong*)d, bits, exp, k);
return k;
}

183
libraries/gdtoa/strtopdd.c
View File

@ -1,183 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtopdd(s, sp, dd) CONST char *s; char **sp; double *dd;
#else
strtopdd(CONST char *s, char **sp, double *dd)
#endif
{
#ifdef Sudden_Underflow
static FPI fpi0 = { 106, 1-1023, 2046-1023-106+1, 1, 1 };
#else
static FPI fpi0 = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 };
#endif
ULong bits[4];
Long exp;
int i, j, rv;
typedef union {
double d[2];
ULong L[4];
} U;
U *u;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
rv = strtodg(s, sp, fpi, &exp, bits);
u = (U*)dd;
switch(rv & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
u->d[0] = u->d[1] = 0.;
break;
case STRTOG_Normal:
u->L[_1] = (bits[1] >> 21 | bits[2] << 11) & 0xffffffffL;
u->L[_0] = (bits[2] >> 21) | ((bits[3] << 11) & 0xfffff)
| ((exp + 0x3ff + 105) << 20);
exp += 0x3ff + 52;
if (bits[1] &= 0x1fffff) {
i = hi0bits(bits[1]) - 11;
if (i >= exp) {
i = exp - 1;
exp = 0;
}
else
exp -= i;
if (i > 0) {
bits[1] = bits[1] << i | bits[0] >> (32-i);
bits[0] = bits[0] << i & 0xffffffffL;
}
}
else if (bits[0]) {
i = hi0bits(bits[0]) + 21;
if (i >= exp) {
i = exp - 1;
exp = 0;
}
else
exp -= i;
if (i < 32) {
bits[1] = bits[0] >> (32 - i);
bits[0] = bits[0] << i & 0xffffffffL;
}
else {
bits[1] = bits[0] << (i - 32);
bits[0] = 0;
}
}
else {
u->L[2] = u->L[3] = 0;
break;
}
u->L[2+_1] = bits[0];
u->L[2+_0] = (bits[1] & 0xfffff) | (exp << 20);
break;
case STRTOG_Denormal:
if (bits[3])
goto nearly_normal;
if (bits[2])
goto partly_normal;
if (bits[1] & 0xffe00000)
goto hardly_normal;
/* completely denormal */
u->L[2] = u->L[3] = 0;
u->L[_1] = bits[0];
u->L[_0] = bits[1];
break;
nearly_normal:
i = hi0bits(bits[3]) - 11; /* i >= 12 */
j = 32 - i;
u->L[_0] = ((bits[3] << i | bits[2] >> j) & 0xfffff)
| ((65 - i) << 20);
u->L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL;
u->L[2+_0] = bits[1] & ((1L << j) - 1);
u->L[2+_1] = bits[0];
break;
partly_normal:
i = hi0bits(bits[2]) - 11;
if (i < 0) {
j = -i;
i += 32;
u->L[_0] = (bits[2] >> j & 0xfffff) | (33 + j) << 20;
u->L[_1] = ((bits[2] << i) | (bits[1] >> j)) & 0xffffffffL;
u->L[2+_0] = bits[1] & ((1L << j) - 1);
u->L[2+_1] = bits[0];
break;
}
if (i == 0) {
u->L[_0] = (bits[2] & 0xfffff) | (33 << 20);
u->L[_1] = bits[1];
u->L[2+_0] = 0;
u->L[2+_1] = bits[0];
break;
}
j = 32 - i;
u->L[_0] = (((bits[2] << i) | (bits[1] >> j)) & 0xfffff)
| ((j + 1) << 20);
u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
u->L[2+_0] = 0;
u->L[2+_1] = bits[0] & ((1L << j) - 1);
break;
hardly_normal:
j = 11 - hi0bits(bits[1]);
i = 32 - j;
u->L[_0] = (bits[1] >> j & 0xfffff) | ((j + 1) << 20);
u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
u->L[2+_0] = 0;
u->L[2+_1] = bits[0] & ((1L << j) - 1);
break;
case STRTOG_Infinite:
u->L[_0] = u->L[2+_0] = 0x7ff00000;
u->L[_1] = u->L[2+_1] = 0;
break;
case STRTOG_NaN:
u->L[0] = u->L[2] = d_QNAN0;
u->L[1] = u->L[3] = d_QNAN1;
}
if (rv & STRTOG_Neg) {
u->L[ _0] |= 0x80000000L;
u->L[2+_0] |= 0x80000000L;
}
return rv;
}

78
libraries/gdtoa/strtopf.c
View File

@ -1,78 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
int
#ifdef KR_headers
strtopf(s, sp, f) CONST char *s; char **sp; float *f;
#else
strtopf(CONST char *s, char **sp, float *f)
#endif
{
static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, SI };
ULong bits[1], *L;
Long exp;
int k;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
L = (ULong*)f;
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = 0;
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[0] = (bits[0] & 0x7fffff) | ((exp + 0x7f + 23) << 23);
break;
case STRTOG_Denormal:
L[0] = bits[0];
break;
case STRTOG_Infinite:
L[0] = 0x7f800000;
break;
case STRTOG_NaN:
L[0] = f_QNAN;
}
if (k & STRTOG_Neg)
L[0] |= 0x80000000L;
return k;
}

111
libraries/gdtoa/strtopx.c
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@ -1,111 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
extern UShort NanDflt_ldus_D2A[5];
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#define _4 4
#endif
#ifdef IEEE_8087
#define _0 4
#define _1 3
#define _2 2
#define _3 1
#define _4 0
#endif
int
#ifdef KR_headers
strtopx(s, sp, V) CONST char *s; char **sp; void *V;
#else
strtopx(CONST char *s, char **sp, void *V)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
ULong bits[2];
Long exp;
int k;
UShort *L = (UShort*)V;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = L[3] = L[4] = 0;
break;
case STRTOG_Denormal:
L[_0] = 0;
goto normal_bits;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_0] = exp + 0x3fff + 63;
normal_bits:
L[_4] = (UShort)bits[0];
L[_3] = (UShort)(bits[0] >> 16);
L[_2] = (UShort)bits[1];
L[_1] = (UShort)(bits[1] >> 16);
break;
case STRTOG_Infinite:
L[_0] = 0x7fff;
L[_1] = 0x8000;
L[_2] = L[_3] = L[_4] = 0;
break;
case STRTOG_NaN:
L[_4] = NanDflt_ldus_D2A[0];
L[_3] = NanDflt_ldus_D2A[1];
L[_2] = NanDflt_ldus_D2A[2];
L[_1] = NanDflt_ldus_D2A[3];
L[_0] = NanDflt_ldus_D2A[4];
}
if (k & STRTOG_Neg)
L[_0] |= 0x8000;
return k;
}

99
libraries/gdtoa/strtopxL.c
View File

@ -1,99 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
extern ULong NanDflt_xL_D2A[3];
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#endif
#ifdef IEEE_8087
#define _0 2
#define _1 1
#define _2 0
#endif
int
#ifdef KR_headers
strtopxL(s, sp, V) CONST char *s; char **sp; void *V;
#else
strtopxL(CONST char *s, char **sp, void *V)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
ULong bits[2];
Long exp;
int k;
ULong *L = (ULong*)V;
#ifdef Honor_FLT_ROUNDS
#include "gdtoa_fltrnds.h"
#else
#define fpi &fpi0
#endif
k = strtodg(s, sp, fpi, &exp, bits);
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = 0;
break;
case STRTOG_Normal:
case STRTOG_Denormal:
case STRTOG_NaNbits:
L[_2] = bits[0];
L[_1] = bits[1];
L[_0] = (exp + 0x3fff + 63) << 16;
break;
case STRTOG_Infinite:
L[_0] = 0x7fff << 16;
L[_1] = 0x80000000;
L[_2] = 0;
break;
case STRTOG_NaN:
L[_0] = NanDflt_xL_D2A[2];
L[_1] = NanDflt_xL_D2A[1];
L[_2] = NanDflt_xL_D2A[0];
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
return k;
}

119
libraries/gdtoa/strtorQ.c
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@ -1,119 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#endif
#ifdef IEEE_8087
#define _0 3
#define _1 2
#define _2 1
#define _3 0
#endif
extern ULong NanDflt_Q_D2A[4];
void
#ifdef KR_headers
ULtoQ(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k;
#else
ULtoQ(ULong *L, ULong *bits, Long exp, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = L[3] = 0;
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_3] = bits[0];
L[_2] = bits[1];
L[_1] = bits[2];
L[_0] = (bits[3] & ~0x10000) | ((exp + 0x3fff + 112) << 16);
break;
case STRTOG_Denormal:
L[_3] = bits[0];
L[_2] = bits[1];
L[_1] = bits[2];
L[_0] = bits[3];
break;
case STRTOG_Infinite:
L[_0] = 0x7fff0000;
L[_1] = L[_2] = L[_3] = 0;
break;
case STRTOG_NaN:
L[_0] = NanDflt_Q_D2A[3];
L[_1] = NanDflt_Q_D2A[2];
L[_2] = NanDflt_Q_D2A[1];
L[_3] = NanDflt_Q_D2A[0];
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
}
int
#ifdef KR_headers
strtorQ(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L;
#else
strtorQ(CONST char *s, char **sp, int rounding, void *L)
#endif
{
static FPI fpi0 = { 113, 1-16383-113+1, 32766-16383-113+1, 1, SI };
FPI *fpi, fpi1;
ULong bits[4];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtoQ((ULong*)L, bits, exp, k);
return k;
}

95
libraries/gdtoa/strtord.c
View File

@ -1,95 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
extern ULong NanDflt_d_D2A[2];
void
#ifdef KR_headers
ULtod(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k;
#else
ULtod(ULong *L, ULong *bits, Long exp, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = 0;
break;
case STRTOG_Denormal:
L[_1] = bits[0];
L[_0] = bits[1];
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_1] = bits[0];
L[_0] = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20);
break;
case STRTOG_Infinite:
L[_0] = 0x7ff00000;
L[_1] = 0;
break;
case STRTOG_NaN:
L[_0] = NanDflt_d_D2A[1];
L[_1] = NanDflt_d_D2A[0];
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
}
int
#ifdef KR_headers
strtord(s, sp, rounding, d) CONST char *s; char **sp; int rounding; double *d;
#else
strtord(CONST char *s, char **sp, int rounding, double *d)
#endif
{
static FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI };
FPI *fpi, fpi1;
ULong bits[2];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtod((ULong*)d, bits, exp, k);
return k;
}

202
libraries/gdtoa/strtordd.c
View File

@ -1,202 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
extern ULong NanDflt_d_D2A[2];
void
#ifdef KR_headers
ULtodd(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k;
#else
ULtodd(ULong *L, ULong *bits, Long exp, int k)
#endif
{
int i, j;
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = L[3] = 0;
break;
case STRTOG_Normal:
L[_1] = (bits[1] >> 21 | bits[2] << 11) & (ULong)0xffffffffL;
L[_0] = (bits[2] >> 21) | (bits[3] << 11 & 0xfffff)
| ((exp + 0x3ff + 105) << 20);
exp += 0x3ff + 52;
if (bits[1] &= 0x1fffff) {
i = hi0bits(bits[1]) - 11;
if (i >= exp) {
i = exp - 1;
exp = 0;
}
else
exp -= i;
if (i > 0) {
bits[1] = bits[1] << i | bits[0] >> (32-i);
bits[0] = bits[0] << i & (ULong)0xffffffffL;
}
}
else if (bits[0]) {
i = hi0bits(bits[0]) + 21;
if (i >= exp) {
i = exp - 1;
exp = 0;
}
else
exp -= i;
if (i < 32) {
bits[1] = bits[0] >> (32 - i);
bits[0] = bits[0] << i & (ULong)0xffffffffL;
}
else {
bits[1] = bits[0] << (i - 32);
bits[0] = 0;
}
}
else {
L[2] = L[3] = 0;
break;
}
L[2+_1] = bits[0];
L[2+_0] = (bits[1] & 0xfffff) | (exp << 20);
break;
case STRTOG_Denormal:
if (bits[3])
goto nearly_normal;
if (bits[2])
goto partly_normal;
if (bits[1] & 0xffe00000)
goto hardly_normal;
/* completely denormal */
L[2] = L[3] = 0;
L[_1] = bits[0];
L[_0] = bits[1];
break;
nearly_normal:
i = hi0bits(bits[3]) - 11; /* i >= 12 */
j = 32 - i;
L[_0] = ((bits[3] << i | bits[2] >> j) & 0xfffff)
| ((65 - i) << 20);
L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL;
L[2+_0] = bits[1] & (((ULong)1L << j) - 1);
L[2+_1] = bits[0];
break;
partly_normal:
i = hi0bits(bits[2]) - 11;
if (i < 0) {
j = -i;
i += 32;
L[_0] = (bits[2] >> j & 0xfffff) | ((33 + j) << 20);
L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL;
L[2+_0] = bits[1] & (((ULong)1L << j) - 1);
L[2+_1] = bits[0];
break;
}
if (i == 0) {
L[_0] = (bits[2] & 0xfffff) | (33 << 20);
L[_1] = bits[1];
L[2+_0] = 0;
L[2+_1] = bits[0];
break;
}
j = 32 - i;
L[_0] = (((bits[2] << i) | (bits[1] >> j)) & 0xfffff)
| ((j + 1) << 20);
L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
L[2+_0] = 0;
L[2+_1] = bits[0] & ((1L << j) - 1);
break;
hardly_normal:
j = 11 - hi0bits(bits[1]);
i = 32 - j;
L[_0] = (bits[1] >> j & 0xfffff) | ((j + 1) << 20);
L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL;
L[2+_0] = 0;
L[2+_1] = bits[0] & (((ULong)1L << j) - 1);
break;
case STRTOG_Infinite:
L[_0] = L[2+_0] = 0x7ff00000;
L[_1] = L[2+_1] = 0;
break;
case STRTOG_NaN:
L[_0] = L[_0+2] = NanDflt_d_D2A[1];
L[_1] = L[_1+2] = NanDflt_d_D2A[0];
break;
case STRTOG_NaNbits:
L[_1] = (bits[1] >> 20 | bits[2] << 12) & (ULong)0xffffffffL;
L[_0] = bits[2] >> 20 | bits[3] << 12;
L[_0] |= (L[_1] | L[_0]) ? (ULong)0x7ff00000L : (ULong)0x7ff80000L;
L[2+_1] = bits[0] & (ULong)0xffffffffL;
L[2+_0] = bits[1] & 0xfffffL;
L[2+_0] |= (L[2+_1] | L[2+_0]) ? (ULong)0x7ff00000L : (ULong)0x7ff80000L;
}
if (k & STRTOG_Neg) {
L[_0] |= 0x80000000L;
L[2+_0] |= 0x80000000L;
}
}
int
#ifdef KR_headers
strtordd(s, sp, rounding, dd) CONST char *s; char **sp; int rounding; double *dd;
#else
strtordd(CONST char *s, char **sp, int rounding, double *dd)
#endif
{
#ifdef Sudden_Underflow
static FPI fpi0 = { 106, 1-1023, 2046-1023-106+1, 1, 1 };
#else
static FPI fpi0 = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 };
#endif
FPI *fpi, fpi1;
ULong bits[4];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtodd((ULong*)dd, bits, exp, k);
return k;
}

91
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@ -1,91 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
extern ULong NanDflt_f_D2A[1];
void
#ifdef KR_headers
ULtof(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k;
#else
ULtof(ULong *L, ULong *bits, Long exp, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
*L = 0;
break;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[0] = (bits[0] & 0x7fffff) | ((exp + 0x7f + 23) << 23);
break;
case STRTOG_Denormal:
L[0] = bits[0];
break;
case STRTOG_Infinite:
L[0] = 0x7f800000;
break;
case STRTOG_NaN:
L[0] = NanDflt_f_D2A[0];
}
if (k & STRTOG_Neg)
L[0] |= 0x80000000L;
}
int
#ifdef KR_headers
strtorf(s, sp, rounding, f) CONST char *s; char **sp; int rounding; float *f;
#else
strtorf(CONST char *s, char **sp, int rounding, float *f)
#endif
{
static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, SI };
FPI *fpi, fpi1;
ULong bits[1];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtof((ULong*)f, bits, exp, k);
return k;
}

122
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@ -1,122 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#define _3 3
#define _4 4
#endif
#ifdef IEEE_8087
#define _0 4
#define _1 3
#define _2 2
#define _3 1
#define _4 0
#endif
extern UShort NanDflt_ldus_D2A[5];
void
#ifdef KR_headers
ULtox(L, bits, exp, k) UShort *L; ULong *bits; Long exp; int k;
#else
ULtox(UShort *L, ULong *bits, Long exp, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = L[3] = L[4] = 0;
break;
case STRTOG_Denormal:
L[_0] = 0;
goto normal_bits;
case STRTOG_Normal:
case STRTOG_NaNbits:
L[_0] = exp + 0x3fff + 63;
normal_bits:
L[_4] = (UShort)bits[0];
L[_3] = (UShort)(bits[0] >> 16);
L[_2] = (UShort)bits[1];
L[_1] = (UShort)(bits[1] >> 16);
break;
case STRTOG_Infinite:
L[_0] = 0x7fff;
L[_1] = 0x8000;
L[_2] = L[_3] = L[_4] = 0;
break;
case STRTOG_NaN:
L[_4] = NanDflt_ldus_D2A[0];
L[_3] = NanDflt_ldus_D2A[1];
L[_2] = NanDflt_ldus_D2A[2];
L[_1] = NanDflt_ldus_D2A[3];
L[_0] = NanDflt_ldus_D2A[4];
}
if (k & STRTOG_Neg)
L[_0] |= 0x8000;
}
int
#ifdef KR_headers
strtorx(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L;
#else
strtorx(CONST char *s, char **sp, int rounding, void *L)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
FPI *fpi, fpi1;
ULong bits[2];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtox((UShort*)L, bits, exp, k);
return k;
}

110
libraries/gdtoa/strtorxL.c
View File

@ -1,110 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 2000 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
#undef _0
#undef _1
/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */
#ifdef IEEE_MC68k
#define _0 0
#define _1 1
#define _2 2
#endif
#ifdef IEEE_8087
#define _0 2
#define _1 1
#define _2 0
#endif
extern ULong NanDflt_xL_D2A[3];
void
#ifdef KR_headers
ULtoxL(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k;
#else
ULtoxL(ULong *L, ULong *bits, Long exp, int k)
#endif
{
switch(k & STRTOG_Retmask) {
case STRTOG_NoNumber:
case STRTOG_Zero:
L[0] = L[1] = L[2] = 0;
break;
case STRTOG_Normal:
case STRTOG_Denormal:
case STRTOG_NaNbits:
L[_0] = (exp + 0x3fff + 63) << 16;
L[_1] = bits[1];
L[_2] = bits[0];
break;
case STRTOG_Infinite:
L[_0] = 0x7fff0000;
L[_1] = 0x80000000;
L[_2] = 0;
break;
case STRTOG_NaN:
L[_0] = NanDflt_xL_D2A[2];
L[_1] = NanDflt_xL_D2A[1];
L[_2] = NanDflt_xL_D2A[0];
}
if (k & STRTOG_Neg)
L[_0] |= 0x80000000L;
}
int
#ifdef KR_headers
strtorxL(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L;
#else
strtorxL(CONST char *s, char **sp, int rounding, void *L)
#endif
{
static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };
FPI *fpi, fpi1;
ULong bits[2];
Long exp;
int k;
fpi = &fpi0;
if (rounding != FPI_Round_near) {
fpi1 = fpi0;
fpi1.rounding = rounding;
fpi = &fpi1;
}
k = strtodg(s, sp, fpi, &exp, bits);
ULtoxL((ULong*)L, bits, exp, k);
return k;
}

98
libraries/gdtoa/sum.c
View File

@ -1,98 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
Bigint *
#ifdef KR_headers
sum(a, b) Bigint *a; Bigint *b;
#else
sum(Bigint *a, Bigint *b)
#endif
{
Bigint *c;
ULong carry, *xc, *xa, *xb, *xe, y;
#ifdef Pack_32
ULong z;
#endif
if (a->wds < b->wds) {
c = b; b = a; a = c;
}
c = Balloc(a->k);
c->wds = a->wds;
carry = 0;
xa = a->x;
xb = b->x;
xc = c->x;
xe = xc + b->wds;
#ifdef Pack_32
do {
y = (*xa & 0xffff) + (*xb & 0xffff) + carry;
carry = (y & 0x10000) >> 16;
z = (*xa++ >> 16) + (*xb++ >> 16) + carry;
carry = (z & 0x10000) >> 16;
Storeinc(xc, z, y);
}
while(xc < xe);
xe += a->wds - b->wds;
while(xc < xe) {
y = (*xa & 0xffff) + carry;
carry = (y & 0x10000) >> 16;
z = (*xa++ >> 16) + carry;
carry = (z & 0x10000) >> 16;
Storeinc(xc, z, y);
}
#else
do {
y = *xa++ + *xb++ + carry;
carry = (y & 0x10000) >> 16;
*xc++ = y & 0xffff;
}
while(xc < xe);
xe += a->wds - b->wds;
while(xc < xe) {
y = *xa++ + carry;
carry = (y & 0x10000) >> 16;
*xc++ = y & 0xffff;
}
#endif
if (carry) {
if (c->wds == c->maxwds) {
b = Balloc(c->k + 1);
Bcopy(b, c);
Bfree(c);
c = b;
}
c->x[c->wds++] = 1;
}
return c;
}

70
libraries/gdtoa/ulp.c
View File

@ -1,70 +0,0 @@
/****************************************************************
The author of this software is David M. Gay.
Copyright (C) 1998, 1999 by Lucent Technologies
All Rights Reserved
Permission to use, copy, modify, and distribute this software and
its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of Lucent or any of its entities
not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.
LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
/* Please send bug reports to David M. Gay (dmg at acm dot org,
* with " at " changed at "@" and " dot " changed to "."). */
#include "gdtoaimp.h"
double
ulp
#ifdef KR_headers
(x) U *x;
#else
(U *x)
#endif
{
Long L;
U a;
L = (word0(x) & Exp_mask) - (P-1)*Exp_msk1;
#ifndef Sudden_Underflow
if (L > 0) {
#endif
#ifdef IBM
L |= Exp_msk1 >> 4;
#endif
word0(&a) = L;
word1(&a) = 0;
#ifndef Sudden_Underflow
}
else {
L = -L >> Exp_shift;
if (L < Exp_shift) {
word0(&a) = 0x80000 >> L;
word1(&a) = 0;
}
else {
word0(&a) = 0;
L -= Exp_shift;
word1(&a) = L >= 31 ? 1 : 1 << (31 - L);
}
}
#endif
return dval(&a);
}

6
src/CMakeLists.txt
View File

@ -1068,7 +1068,6 @@ set (PCH_SOURCES
common/utility/i_time.cpp
common/utility/m_argv.cpp
common/utility/s_playlist.cpp
common/utility/zstrformat.cpp
common/utility/name.cpp
common/utility/r_memory.cpp
common/thirdparty/base64.cpp
@ -1201,6 +1200,7 @@ add_executable( zdoom WIN32 MACOSX_BUNDLE
${PCH_SOURCES}
common/utility/x86.cpp
common/thirdparty/strnatcmp.c
common/thirdparty/stb/stb_sprintf.c
common/utility/zstring.cpp
common/utility/findfile.cpp
common/thirdparty/math/asin.c
@ -1241,7 +1241,7 @@ if( UNIX )
endif()
endif()
target_link_libraries( zdoom ${PROJECT_LIBRARIES} gdtoa lzma ${ZMUSIC_LIBRARIES} )
target_link_libraries( zdoom ${PROJECT_LIBRARIES} lzma ${ZMUSIC_LIBRARIES} )
include_directories(
BEFORE
@ -1301,9 +1301,7 @@ include_directories(
scripting
scripting/zscript
rendering
../libraries/gdtoa
../libraries/ZVulkan/include
${CMAKE_BINARY_DIR}/libraries/gdtoa
${SYSTEM_SOURCES_DIR}
)

4
src/common/console/c_cvars.cpp
View File

@ -397,7 +397,7 @@ const char *FBaseCVar::ToString (UCVarValue value, ECVarType type)
case CVAR_Float:
IGNORE_FORMAT_PRE
mysnprintf (cstrbuf, countof(cstrbuf), "%H", value.Float);
mysnprintf (cstrbuf, countof(cstrbuf), "%g", value.Float);
IGNORE_FORMAT_POST
break;
@ -489,7 +489,7 @@ UCVarValue FBaseCVar::FromFloat (float value, ECVarType type)
case CVAR_String:
IGNORE_FORMAT_PRE
mysnprintf (cstrbuf, countof(cstrbuf), "%H", value);
mysnprintf (cstrbuf, countof(cstrbuf), "%g", value);
IGNORE_FORMAT_POST
ret.String = cstrbuf;
break;

3
src/common/engine/printf.h
View File

@ -7,8 +7,9 @@
# define ATTRIBUTE(attrlist)
#endif
// This header collects all things printf, so that this doesn't need to pull in other, far more dirty headers, just for outputting some text.
#include "stb_sprintf.h"
// This header collects all things printf, so that this doesn't need to pull in other, far more dirty headers, just for outputting some text.
extern "C" int mysnprintf(char* buffer, size_t count, const char* format, ...) ATTRIBUTE((format(printf, 3, 4)));
extern "C" int myvsnprintf(char* buffer, size_t count, const char* format, va_list argptr) ATTRIBUTE((format(printf, 3, 0)));

20
src/common/thirdparty/stb/stb_sprintf.c vendored Normal file
View File

@ -0,0 +1,20 @@
#define STB_SPRINTF_IMPLEMENTATION
#include "stb_sprintf.h"
// We still need our own wrappers because they use a size_t for count, not an int.
int mysnprintf(char* buf, size_t count, char const* fmt, ...)
{
int result;
va_list va;
va_start(va, fmt);
result = stbsp_vsnprintf(buf, (int)count, fmt, va);
va_end(va);
return result;
}
int myvsnprintf(char* buf, size_t count, const char* fmt, va_list va)
{
return stbsp_vsnprintf(buf, (int)count, fmt, va);
}

1906
src/common/thirdparty/stb/stb_sprintf.h vendored Normal file
View File

File diff suppressed because it is too large Load Diff

1061
src/common/utility/zstrformat.cpp
View File

File diff suppressed because it is too large Load Diff

14
src/common/utility/zstring.cpp
View File

@ -39,6 +39,7 @@
#include "zstring.h"
#include "utf8.h"
#include "stb_sprintf.h"
extern uint16_t lowerforupper[65536];
extern uint16_t upperforlower[65536];
@ -274,25 +275,28 @@ void FString::Format (const char *fmt, ...)
void FString::AppendFormat (const char *fmt, ...)
{
char workbuf[STB_SPRINTF_MIN];
va_list arglist;
va_start (arglist, fmt);
StringFormat::VWorker (FormatHelper, this, fmt, arglist);
stbsp_vsprintfcb(FormatHelper, this, workbuf, fmt, arglist);
va_end (arglist);
}
void FString::VFormat (const char *fmt, va_list arglist)
{
char workbuf[STB_SPRINTF_MIN];
Data()->Release();
Chars = (char *)(FStringData::Alloc(128) + 1);
StringFormat::VWorker (FormatHelper, this, fmt, arglist);
stbsp_vsprintfcb(FormatHelper, this, workbuf, fmt, arglist);
}
void FString::VAppendFormat (const char *fmt, va_list arglist)
{
StringFormat::VWorker (FormatHelper, this, fmt, arglist);
char workbuf[STB_SPRINTF_MIN];
stbsp_vsprintfcb(FormatHelper, this, workbuf, fmt, arglist);
}
int FString::FormatHelper (void *data, const char *cstr, int len)
char* FString::FormatHelper (const char *cstr, void* data, int len)
{
FString *str = (FString *)data;
size_t len1 = str->Len();
@ -302,7 +306,7 @@ int FString::FormatHelper (void *data, const char *cstr, int len)
}
StrCopy (str->Chars + len1, cstr, len);
str->Data()->Len = (unsigned int)(len1 + len);
return len;
return (char*)cstr;
}
FString FString::operator + (const FString &tail) const

4
src/common/utility/zstring.h
View File

@ -364,7 +364,7 @@ protected:
void AllocBuffer (size_t len);
void ReallocBuffer (size_t newlen);
static int FormatHelper (void *data, const char *str, int len);
static char* FormatHelper (const char *str, void* data, int len);
static void StrCopy (char *to, const char *from, size_t len);
static void StrCopy (char *to, const FString &from);
@ -431,6 +431,7 @@ public:
};
/*
namespace StringFormat
{
enum
@ -461,6 +462,7 @@ namespace StringFormat
int VWorker (OutputFunc output, void *outputData, const char *fmt, va_list arglist);
int Worker (OutputFunc output, void *outputData, const char *fmt, ...);
};
*/
#undef PRINTFISH

2
src/playsim/p_actionfunctions.cpp
View File

@ -1396,7 +1396,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_LogFloat)
if (local && !self->CheckLocalView()) return 0;
IGNORE_FORMAT_PRE
Printf("%H\n", num);
Printf("%g\n", num);
IGNORE_FORMAT_POST
return 0;
}