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Some math constants

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Dale Weiler 2013-11-23 10:31:51 -05:00
parent 80adfebd23
commit ab2a4f1318
1 changed files with 22 additions and 0 deletions
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22
ftepp.c
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@ -1811,11 +1811,29 @@ void ftepp_add_macro(ftepp_t *ftepp, const char *name, const char *value) {
vec_free (create); vec_free (create);
} }
static const char *ftepp_math_constants[][2] = {
{ "M_E", "2.7182818284590452354" }, /* e */
{ "M_LOG2E", "1.4426950408889634074" }, /* log_2 e */
{ "M_LOG10E", "0.43429448190325182765" }, /* log_10 e */
{ "M_LN2", "0.69314718055994530942" }, /* log_e 2 */
{ "M_LN10", "2.30258509299404568402" }, /* log_e 10 */
{ "M_PI", "3.14159265358979323846" }, /* pi */
{ "M_PI_2", "1.57079632679489661923" }, /* pi/2 */
{ "M_PI_4", "0.78539816339744830962" }, /* pi/4 */
{ "M_1_PI", "0.31830988618379067154" }, /* 1/pi */
{ "M_2_PI", "0.63661977236758134308" }, /* 2/pi */
{ "M_2_SQRTPI", "1.12837916709551257390" }, /* 2/sqrt(pi) */
{ "M_SQRT2", "1.41421356237309504880" }, /* sqrt(2) */
{ "M_SQRT1_2", "0.70710678118654752440" }, /* 1/sqrt(2) */
{ "M_TAU", "6.28318530717958647692" } /* pi*2 */
};
ftepp_t *ftepp_create() ftepp_t *ftepp_create()
{ {
ftepp_t *ftepp; ftepp_t *ftepp;
char minor[32]; char minor[32];
char major[32]; char major[32];
size_t i;
ftepp = ftepp_new(); ftepp = ftepp_new();
if (!ftepp) if (!ftepp)
@ -1865,6 +1883,10 @@ ftepp_t *ftepp_create()
*/ */
ftepp_add_macro(ftepp, "__NULL__", "nil"); ftepp_add_macro(ftepp, "__NULL__", "nil");
/* add all the math constants */
for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++)
ftepp_add_macro(ftepp, ftepp_math_constants[i][0], ftepp_math_constants[i][1]);
return ftepp; return ftepp;
} }