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allow "long double" precision for PI constant if needed

This commit is contained in:
Roberto Ierusalimschy 2012-05-18 14:47:53 -03:00
parent ea980fdeef
commit 3ac595da8a
1 changed files with 6 additions and 6 deletions
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12
lmathlib.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lmathlib.c,v 1.79 2010/11/18 18:38:27 roberto Exp roberto $ ** $Id: lmathlib.c,v 1.80 2011/07/05 12:49:35 roberto Exp roberto $
** Standard mathematical library ** Standard mathematical library
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -17,17 +17,17 @@
#include "lualib.h" #include "lualib.h"
#undef PI
#define PI (3.14159265358979323846)
#define RADIANS_PER_DEGREE (PI/180.0)
/* macro 'l_tg' allows the addition of an 'l' or 'f' to all math operations */ /* macro 'l_tg' allows the addition of an 'l' or 'f' to all math operations */
#if !defined(l_tg) #if !defined(l_tg)
#define l_tg(x) (x) #define l_tg(x) (x)
#endif #endif
#undef PI
#define PI (l_tg(3.1415926535897932384626433832795))
#define RADIANS_PER_DEGREE (PI/180.0)
static int math_abs (lua_State *L) { static int math_abs (lua_State *L) {
lua_pushnumber(L, l_tg(fabs)(luaL_checknumber(L, 1))); lua_pushnumber(L, l_tg(fabs)(luaL_checknumber(L, 1)));