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Mask ftepp math constants with a compiler flag

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This commit is contained in:
Dale Weiler 2013-12-01 10:45:43 -05:00
parent b20e2a9d34
commit 6a44b72db3
4 changed files with 48 additions and 3 deletions
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20
doc/gmqcc.1
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@ -397,6 +397,26 @@ only the first component will be 0, while the other two will become
the first to of the global return value. This behavior is odd and
relying on it should be discouraged, and thus is not supported by
gmqcc.
.It Fl f Ns Cm ftepp-mathdefs
Enable math constant definitions. This only works in combination
with \'\-fftepp' and is currently not included by '\-std=fteqcc'.
The following macros will be added:
.Bd -literal -offset indent
M_E
M_LOG2E
M_LOG10E
M_LN2
M_LN10
M_PI
M_PI_2
M_PI_4
M_1_PI
M_2_PI
M_2_SQRTPI
M_SQRT2
M_SQRT1_2
M_TAU
.Ed
.It Fl f Ns Cm relaxed-switch
Allow switch cases to use non constant variables.
.It Fl f Ns Cm short-logic

2
ftepp.c
View file

@ -1900,9 +1900,11 @@ ftepp_t *ftepp_create()
ftepp_add_macro(ftepp, "__NULL__", "nil");
/* add all the math constants if they can be */
if (OPTS_FLAG(FTEPP_MATHDEFS)) {
for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++)
if (!ftepp_macro_find(ftepp, ftepp_math_constants[i][0]))
ftepp_add_macro(ftepp, ftepp_math_constants[i][0], ftepp_math_constants[i][1]);
}
return ftepp;
}

22
gmqcc.ini.example
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@ -62,6 +62,28 @@
FTEPP_PREDEFS = false
#Enable math constant definitions. This only works in combination
#with '-fftepp' and is currently not included by '-std=fteqcc'.
#The following macros will be added:
#
# M_E
# M_LOG2E
# M_LOG10E
# M_LN2
# M_LN10
# M_PI
# M_PI_2
# M_PI_4
# M_1_PI
# M_2_PI
# M_2_SQRTPI
# M_SQRT2
# M_SQRT1_2
# M_TAU
FTEPP_MATHDEFS = false
#Allow switch cases to use non constant variables.
RELAXED_SWITCH = true

1
opts.def
View file

@ -31,6 +31,7 @@
GMQCC_DEFINE_FLAG(ADJUST_VECTOR_FIELDS)
GMQCC_DEFINE_FLAG(FTEPP)
GMQCC_DEFINE_FLAG(FTEPP_PREDEFS)
GMQCC_DEFINE_FLAG(FTEPP_MATHDEFS)
GMQCC_DEFINE_FLAG(RELAXED_SWITCH)
GMQCC_DEFINE_FLAG(SHORT_LOGIC)
GMQCC_DEFINE_FLAG(PERL_LOGIC)