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Diffstat (limited to 'lib/lua/src/LuaLib/lmathlib.c')
-rw-r--r--lib/lua/src/LuaLib/lmathlib.c492
1 files changed, 246 insertions, 246 deletions
diff --git a/lib/lua/src/LuaLib/lmathlib.c b/lib/lua/src/LuaLib/lmathlib.c
index 2352fca..998c46c 100644
--- a/lib/lua/src/LuaLib/lmathlib.c
+++ b/lib/lua/src/LuaLib/lmathlib.c
@@ -1,246 +1,246 @@
-/*
-** $Id: lmathlib.c,v 1.3 2004-11-27 21:35:21 pixel Exp $
-** Standard mathematical library
-** See Copyright Notice in lua.h
-*/
-
-
-#include <stdlib.h>
-#include <math.h>
-
-#define lmathlib_c
-
-#include "lua.h"
-
-#include "lauxlib.h"
-#include "lualib.h"
-
-
-#undef PI
-#define PI (3.14159265358979323846)
-#define RADIANS_PER_DEGREE (PI/180.0)
-
-
-
-/*
-** If you want Lua to operate in degrees (instead of radians),
-** define USE_DEGREES
-*/
-#ifdef USE_DEGREES
-#define FROMRAD(a) ((a)/RADIANS_PER_DEGREE)
-#define TORAD(a) ((a)*RADIANS_PER_DEGREE)
-#else
-#define FROMRAD(a) (a)
-#define TORAD(a) (a)
-#endif
-
-
-static int math_abs (lua_State *L) {
- lua_pushnumber(L, fabs(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_sin (lua_State *L) {
- lua_pushnumber(L, sin(TORAD(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_cos (lua_State *L) {
- lua_pushnumber(L, cos(TORAD(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_tan (lua_State *L) {
- lua_pushnumber(L, tan(TORAD(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_asin (lua_State *L) {
- lua_pushnumber(L, FROMRAD(asin(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_acos (lua_State *L) {
- lua_pushnumber(L, FROMRAD(acos(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_atan (lua_State *L) {
- lua_pushnumber(L, FROMRAD(atan(luaL_checknumber(L, 1))));
- return 1;
-}
-
-static int math_atan2 (lua_State *L) {
- lua_pushnumber(L, FROMRAD(atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2))));
- return 1;
-}
-
-static int math_ceil (lua_State *L) {
- lua_pushnumber(L, ceil(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_floor (lua_State *L) {
- lua_pushnumber(L, floor(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_mod (lua_State *L) {
- lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
- return 1;
-}
-
-static int math_sqrt (lua_State *L) {
- lua_pushnumber(L, sqrt(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_pow (lua_State *L) {
- lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
- return 1;
-}
-
-static int math_log (lua_State *L) {
- lua_pushnumber(L, log(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_log10 (lua_State *L) {
- lua_pushnumber(L, log10(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_exp (lua_State *L) {
- lua_pushnumber(L, exp(luaL_checknumber(L, 1)));
- return 1;
-}
-
-static int math_deg (lua_State *L) {
- lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE);
- return 1;
-}
-
-static int math_rad (lua_State *L) {
- lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE);
- return 1;
-}
-
-static int math_frexp (lua_State *L) {
- int e;
- lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e));
- lua_pushnumber(L, e);
- return 2;
-}
-
-static int math_ldexp (lua_State *L) {
- lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2)));
- return 1;
-}
-
-
-
-static int math_min (lua_State *L) {
- int n = lua_gettop(L); /* number of arguments */
- lua_Number dmin = luaL_checknumber(L, 1);
- int i;
- for (i=2; i<=n; i++) {
- lua_Number d = luaL_checknumber(L, i);
- if (d < dmin)
- dmin = d;
- }
- lua_pushnumber(L, dmin);
- return 1;
-}
-
-
-static int math_max (lua_State *L) {
- int n = lua_gettop(L); /* number of arguments */
- lua_Number dmax = luaL_checknumber(L, 1);
- int i;
- for (i=2; i<=n; i++) {
- lua_Number d = luaL_checknumber(L, i);
- if (d > dmax)
- dmax = d;
- }
- lua_pushnumber(L, dmax);
- return 1;
-}
-
-
-static int math_random (lua_State *L) {
- /* the `%' avoids the (rare) case of r==1, and is needed also because on
- some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */
- lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX;
- switch (lua_gettop(L)) { /* check number of arguments */
- case 0: { /* no arguments */
- lua_pushnumber(L, r); /* Number between 0 and 1 */
- break;
- }
- case 1: { /* only upper limit */
- int u = luaL_checkint(L, 1);
- luaL_argcheck(L, 1<=u, 1, "interval is empty");
- lua_pushnumber(L, (int)floor(r*u)+1); /* int between 1 and `u' */
- break;
- }
- case 2: { /* lower and upper limits */
- int l = luaL_checkint(L, 1);
- int u = luaL_checkint(L, 2);
- luaL_argcheck(L, l<=u, 2, "interval is empty");
- lua_pushnumber(L, (int)floor(r*(u-l+1))+l); /* int between `l' and `u' */
- break;
- }
- default: return luaL_error(L, "wrong number of arguments");
- }
- return 1;
-}
-
-
-static int math_randomseed (lua_State *L) {
- srand(luaL_checkint(L, 1));
- return 0;
-}
-
-
-static const luaL_reg mathlib[] = {
- {"abs", math_abs},
- {"sin", math_sin},
- {"cos", math_cos},
- {"tan", math_tan},
- {"asin", math_asin},
- {"acos", math_acos},
- {"atan", math_atan},
- {"atan2", math_atan2},
- {"ceil", math_ceil},
- {"floor", math_floor},
- {"mod", math_mod},
- {"frexp", math_frexp},
- {"ldexp", math_ldexp},
- {"sqrt", math_sqrt},
- {"min", math_min},
- {"max", math_max},
- {"log", math_log},
- {"log10", math_log10},
- {"exp", math_exp},
- {"deg", math_deg},
- {"pow", math_pow},
- {"rad", math_rad},
- {"random", math_random},
- {"randomseed", math_randomseed},
- {NULL, NULL}
-};
-
-
-/*
-** Open math library
-*/
-LUALIB_API int luaopen_math (lua_State *L) {
- luaL_openlib(L, LUA_MATHLIBNAME, mathlib, 0);
- lua_pushliteral(L, "pi");
- lua_pushnumber(L, PI);
- lua_settable(L, -3);
- lua_pushliteral(L, "__pow");
- lua_pushcfunction(L, math_pow);
- lua_settable(L, LUA_GLOBALSINDEX);
- return 1;
-}
-
+/*
+** $Id: lmathlib.c,v 1.4 2004-11-27 21:46:10 pixel Exp $
+** Standard mathematical library
+** See Copyright Notice in lua.h
+*/
+
+
+#include <stdlib.h>
+#include <math.h>
+
+#define lmathlib_c
+
+#include "lua.h"
+
+#include "lauxlib.h"
+#include "lualib.h"
+
+
+#undef PI
+#define PI (3.14159265358979323846)
+#define RADIANS_PER_DEGREE (PI/180.0)
+
+
+
+/*
+** If you want Lua to operate in degrees (instead of radians),
+** define USE_DEGREES
+*/
+#ifdef USE_DEGREES
+#define FROMRAD(a) ((a)/RADIANS_PER_DEGREE)
+#define TORAD(a) ((a)*RADIANS_PER_DEGREE)
+#else
+#define FROMRAD(a) (a)
+#define TORAD(a) (a)
+#endif
+
+
+static int math_abs (lua_State *L) {
+ lua_pushnumber(L, fabs(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_sin (lua_State *L) {
+ lua_pushnumber(L, sin(TORAD(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_cos (lua_State *L) {
+ lua_pushnumber(L, cos(TORAD(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_tan (lua_State *L) {
+ lua_pushnumber(L, tan(TORAD(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_asin (lua_State *L) {
+ lua_pushnumber(L, FROMRAD(asin(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_acos (lua_State *L) {
+ lua_pushnumber(L, FROMRAD(acos(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_atan (lua_State *L) {
+ lua_pushnumber(L, FROMRAD(atan(luaL_checknumber(L, 1))));
+ return 1;
+}
+
+static int math_atan2 (lua_State *L) {
+ lua_pushnumber(L, FROMRAD(atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2))));
+ return 1;
+}
+
+static int math_ceil (lua_State *L) {
+ lua_pushnumber(L, ceil(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_floor (lua_State *L) {
+ lua_pushnumber(L, floor(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_mod (lua_State *L) {
+ lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
+ return 1;
+}
+
+static int math_sqrt (lua_State *L) {
+ lua_pushnumber(L, sqrt(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_pow (lua_State *L) {
+ lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
+ return 1;
+}
+
+static int math_log (lua_State *L) {
+ lua_pushnumber(L, log(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_log10 (lua_State *L) {
+ lua_pushnumber(L, log10(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_exp (lua_State *L) {
+ lua_pushnumber(L, exp(luaL_checknumber(L, 1)));
+ return 1;
+}
+
+static int math_deg (lua_State *L) {
+ lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE);
+ return 1;
+}
+
+static int math_rad (lua_State *L) {
+ lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE);
+ return 1;
+}
+
+static int math_frexp (lua_State *L) {
+ int e;
+ lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e));
+ lua_pushnumber(L, e);
+ return 2;
+}
+
+static int math_ldexp (lua_State *L) {
+ lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2)));
+ return 1;
+}
+
+
+
+static int math_min (lua_State *L) {
+ int n = lua_gettop(L); /* number of arguments */
+ lua_Number dmin = luaL_checknumber(L, 1);
+ int i;
+ for (i=2; i<=n; i++) {
+ lua_Number d = luaL_checknumber(L, i);
+ if (d < dmin)
+ dmin = d;
+ }
+ lua_pushnumber(L, dmin);
+ return 1;
+}
+
+
+static int math_max (lua_State *L) {
+ int n = lua_gettop(L); /* number of arguments */
+ lua_Number dmax = luaL_checknumber(L, 1);
+ int i;
+ for (i=2; i<=n; i++) {
+ lua_Number d = luaL_checknumber(L, i);
+ if (d > dmax)
+ dmax = d;
+ }
+ lua_pushnumber(L, dmax);
+ return 1;
+}
+
+
+static int math_random (lua_State *L) {
+ /* the `%' avoids the (rare) case of r==1, and is needed also because on
+ some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */
+ lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX;
+ switch (lua_gettop(L)) { /* check number of arguments */
+ case 0: { /* no arguments */
+ lua_pushnumber(L, r); /* Number between 0 and 1 */
+ break;
+ }
+ case 1: { /* only upper limit */
+ int u = luaL_checkint(L, 1);
+ luaL_argcheck(L, 1<=u, 1, "interval is empty");
+ lua_pushnumber(L, (int)floor(r*u)+1); /* int between 1 and `u' */
+ break;
+ }
+ case 2: { /* lower and upper limits */
+ int l = luaL_checkint(L, 1);
+ int u = luaL_checkint(L, 2);
+ luaL_argcheck(L, l<=u, 2, "interval is empty");
+ lua_pushnumber(L, (int)floor(r*(u-l+1))+l); /* int between `l' and `u' */
+ break;
+ }
+ default: return luaL_error(L, "wrong number of arguments");
+ }
+ return 1;
+}
+
+
+static int math_randomseed (lua_State *L) {
+ srand(luaL_checkint(L, 1));
+ return 0;
+}
+
+
+static const luaL_reg mathlib[] = {
+ {"abs", math_abs},
+ {"sin", math_sin},
+ {"cos", math_cos},
+ {"tan", math_tan},
+ {"asin", math_asin},
+ {"acos", math_acos},
+ {"atan", math_atan},
+ {"atan2", math_atan2},
+ {"ceil", math_ceil},
+ {"floor", math_floor},
+ {"mod", math_mod},
+ {"frexp", math_frexp},
+ {"ldexp", math_ldexp},
+ {"sqrt", math_sqrt},
+ {"min", math_min},
+ {"max", math_max},
+ {"log", math_log},
+ {"log10", math_log10},
+ {"exp", math_exp},
+ {"deg", math_deg},
+ {"pow", math_pow},
+ {"rad", math_rad},
+ {"random", math_random},
+ {"randomseed", math_randomseed},
+ {NULL, NULL}
+};
+
+
+/*
+** Open math library
+*/
+LUALIB_API int luaopen_math (lua_State *L) {
+ luaL_openlib(L, LUA_MATHLIBNAME, mathlib, 0);
+ lua_pushliteral(L, "pi");
+ lua_pushnumber(L, PI);
+ lua_settable(L, -3);
+ lua_pushliteral(L, "__pow");
+ lua_pushcfunction(L, math_pow);
+ lua_settable(L, LUA_GLOBALSINDEX);
+ return 1;
+}
+