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more precision for PI + no more RADIANS_PER_DEGREE + 

'min/maxint' -> 'min/maxinteger'
This commit is contained in:
Roberto Ierusalimschy 2014-04-09 14:29:46 -03:00
parent a8aede68c7
commit fdd137276b
1 changed files with 6 additions and 7 deletions
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13
lmathlib.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lmathlib.c,v 1.94 2014/04/01 14:39:55 roberto Exp roberto $ ** $Id: lmathlib.c,v 1.95 2014/04/03 14:18:19 roberto Exp roberto $
** Standard mathematical library ** Standard mathematical library
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -18,8 +18,7 @@
#undef PI #undef PI
#define PI ((lua_Number)(3.1415926535897932384626433832795)) #define PI (l_mathop(3.141592653589793238462643383279502884))
#define RADIANS_PER_DEGREE ((lua_Number)(PI/180.0))
static int math_abs (lua_State *L) { static int math_abs (lua_State *L) {
@ -167,12 +166,12 @@ static int math_exp (lua_State *L) {
} }
static int math_deg (lua_State *L) { static int math_deg (lua_State *L) {
lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE); lua_pushnumber(L, luaL_checknumber(L, 1) * (180.0 / PI));
return 1; return 1;
} }
static int math_rad (lua_State *L) { static int math_rad (lua_State *L) {
lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE); lua_pushnumber(L, luaL_checknumber(L, 1) * (PI / 180.0));
return 1; return 1;
} }
@ -317,9 +316,9 @@ LUAMOD_API int luaopen_math (lua_State *L) {
lua_pushnumber(L, HUGE_VAL); lua_pushnumber(L, HUGE_VAL);
lua_setfield(L, -2, "huge"); lua_setfield(L, -2, "huge");
lua_pushinteger(L, LUA_MAXINTEGER); lua_pushinteger(L, LUA_MAXINTEGER);
lua_setfield(L, -2, "maxint"); lua_setfield(L, -2, "maxinteger");
lua_pushinteger(L, LUA_MININTEGER); lua_pushinteger(L, LUA_MININTEGER);
lua_setfield(L, -2, "minint"); lua_setfield(L, -2, "mininteger");
return 1; return 1;
} }