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gzdoom/libraries/gdtoa/gdtoa.h

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/****************************************************************
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 */
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