lmathlib.cpp File Reference

#include "lprefix.h"
#include <float.h>
#include <limits.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"

Include dependency graph for lmathlib.cpp:

Go to the source code of this file.

Classes
struct	Rand64
struct	RanState

Macros
#define	lmathlib_c
#define	LUA_LIB
#define	PI   (l_mathop(3.141592653589793238462643383279502884))
#define	FIGS   l_floatatt(MANT_DIG)
#define	trim32(x)   ((x) & 0xffffffffu)
#define	UONE   ((lu_int32)1)
#define	scaleFIG   (l_mathop(0.5) / (UONE << (FIGS - 1)))

Typedefs
typedef unsigned long	lu_int32
typedef struct Rand64	Rand64

Functions
static int	math_abs (lua_State *L)
static int	math_sin (lua_State *L)
static int	math_cos (lua_State *L)
static int	math_tan (lua_State *L)
static int	math_asin (lua_State *L)
static int	math_acos (lua_State *L)
static int	math_atan (lua_State *L)
static int	math_toint (lua_State *L)
static void	pushnumint (lua_State *L, lua_Number d)
static int	math_floor (lua_State *L)
static int	math_ceil (lua_State *L)
static int	math_fmod (lua_State *L)
static int	math_modf (lua_State *L)
static int	math_sqrt (lua_State *L)
static int	math_ult (lua_State *L)
static int	math_log (lua_State *L)
static int	math_exp (lua_State *L)
static int	math_deg (lua_State *L)
static int	math_rad (lua_State *L)
static int	math_min (lua_State *L)
static int	math_max (lua_State *L)
static int	math_type (lua_State *L)
static Rand64	packI (lu_int32 h, lu_int32 l)
static Rand64	Ishl (Rand64 i, int n)
static void	Ixor (Rand64 *i1, Rand64 i2)
static Rand64	Iadd (Rand64 i1, Rand64 i2)
static Rand64	times5 (Rand64 i)
static Rand64	times9 (Rand64 i)
static Rand64	rotl (Rand64 i, int n)
static Rand64	rotl1 (Rand64 i, int n)
static Rand64	nextrand (Rand64 *state)
static lua_Number	I2d (Rand64 x)
static lua_Unsigned	I2UInt (Rand64 x)
static Rand64	Int2I (lua_Unsigned n)
static lua_Unsigned	project (lua_Unsigned ran, lua_Unsigned n, RanState *state)
static int	math_random (lua_State *L)
static void	setseed (lua_State *L, Rand64 *state, lua_Unsigned n1, lua_Unsigned n2)
static void	randseed (lua_State *L, RanState *state)
static int	math_randomseed (lua_State *L)
static void	setrandfunc (lua_State *L)
LUAMOD_API int	luaopen_math (lua_State *L)

Variables
static const luaL_Reg	randfuncs []
static const luaL_Reg	mathlib []

Macro Definition Documentation

FIGS

#define FIGS   l_floatatt(MANT_DIG)

Definition at line 252 of file lmathlib.cpp.

Referenced by I2d().

lmathlib_c

#define lmathlib_c

Definition at line 7 of file lmathlib.cpp.

LUA_LIB

#define LUA_LIB

Definition at line 8 of file lmathlib.cpp.

PI

#define PI   (l_mathop(3.141592653589793238462643383279502884))

Definition at line 26 of file lmathlib.cpp.

Referenced by luaopen_math(), math_deg(), and math_rad().

scaleFIG

#define scaleFIG   (l_mathop(0.5) / (UONE << (FIGS - 1)))

Definition at line 460 of file lmathlib.cpp.

Referenced by I2d().

trim32

#define trim32

(

x

)

((x) & 0xffffffffu)

Definition at line 373 of file lmathlib.cpp.

Referenced by I2d(), I2UInt(), Iadd(), Ishl(), rotl(), and rotl1().

UONE

#define UONE   ((lu_int32)1)

Definition at line 454 of file lmathlib.cpp.

Typedef Documentation

lu_int32

typedef unsigned long lu_int32

Definition at line 353 of file lmathlib.cpp.

Rand64

typedef struct Rand64 Rand64

Function Documentation

I2d()

static lua_Number I2d ( Rand64  x )

static

Definition at line 466 of file lmathlib.cpp.

References FIGS, Rand64::h, Rand64::l, scaleFIG, and trim32.

Referenced by math_random().

I2UInt()

static lua_Unsigned I2UInt ( Rand64  x )

static

Definition at line 501 of file lmathlib.cpp.

References Rand64::h, Rand64::l, and trim32.

Referenced by math_random(), and project().

Iadd()

static Rand64 Iadd ( Rand64  i1, Rand64  i2  )

static

Definition at line 401 of file lmathlib.cpp.

References Rand64::h, Rand64::l, packI(), and trim32.

Referenced by times5(), and times9().

Int2I()

static Rand64 Int2I ( lua_Unsigned  n )

static

Definition at line 506 of file lmathlib.cpp.

References packI().

Referenced by setseed().

Ishl()

static Rand64 Ishl ( Rand64  i, int  n  )

static

Definition at line 389 of file lmathlib.cpp.

References Rand64::h, Rand64::l, lua_assert, packI(), and trim32.

Referenced by nextrand(), times5(), and times9().

Ixor()

static void Ixor ( Rand64 *  i1, Rand64  i2  )

static

Definition at line 395 of file lmathlib.cpp.

References Rand64::h, and Rand64::l.

Referenced by nextrand().

luaopen_math()

LUAMOD_API int luaopen_math

(

lua_State *

L

)

Definition at line 750 of file lmathlib.cpp.

References lua_pushinteger(), lua_pushnumber(), lua_setfield(), luaL_newlib, PI, and setrandfunc().

Referenced by lua_kernel_base::lua_kernel_base().

math_abs()

static int math_abs ( lua_State *  L )

static

Definition at line 29 of file lmathlib.cpp.

References l_mathop, lua_isinteger(), lua_pushinteger(), lua_pushnumber(), lua_tointeger, luaL_checknumber(), and n.

math_acos()

static int math_acos ( lua_State *  L )

static

Definition at line 60 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_asin()

static int math_asin ( lua_State *  L )

static

Definition at line 55 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_atan()

static int math_atan ( lua_State *  L )

static

Definition at line 65 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), luaL_checknumber(), and luaL_optnumber().

math_ceil()

static int math_ceil ( lua_State *  L )

static

Definition at line 106 of file lmathlib.cpp.

References d, l_mathop, lua_isinteger(), lua_settop(), luaL_checknumber(), and pushnumint().

math_cos()

static int math_cos ( lua_State *  L )

static

Definition at line 45 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_deg()

static int math_deg ( lua_State *  L )

static

Definition at line 194 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), luaL_checknumber(), and PI.

math_exp()

static int math_exp ( lua_State *  L )

static

Definition at line 189 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_floor()

static int math_floor ( lua_State *  L )

static

Definition at line 95 of file lmathlib.cpp.

References d, l_mathop, lua_isinteger(), lua_settop(), luaL_checknumber(), and pushnumint().

math_fmod()

static int math_fmod ( lua_State *  L )

static

Definition at line 117 of file lmathlib.cpp.

References d, l_mathop, lua_isinteger(), lua_pushinteger(), lua_pushnumber(), lua_tointeger, luaL_argcheck, and luaL_checknumber().

math_log()

static int math_log ( lua_State *  L )

static

Definition at line 169 of file lmathlib.cpp.

References l_mathop, lua_isnoneornil, lua_pushnumber(), and luaL_checknumber().

math_max()

static int math_max ( lua_State *  L )

static

Definition at line 219 of file lmathlib.cpp.

References i, lua_compare(), lua_gettop(), LUA_OPLT, lua_pushvalue(), luaL_argcheck, and n.

math_min()

static int math_min ( lua_State *  L )

static

Definition at line 205 of file lmathlib.cpp.

References i, lua_compare(), lua_gettop(), LUA_OPLT, lua_pushvalue(), luaL_argcheck, and n.

math_modf()

static int math_modf ( lua_State *  L )

static

Definition at line 139 of file lmathlib.cpp.

References l_mathop, lua_isinteger(), lua_pushnumber(), lua_settop(), luaL_checknumber(), n, and pushnumint().

math_rad()

static int math_rad ( lua_State *  L )

static

Definition at line 199 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), luaL_checknumber(), and PI.

math_random()

static int math_random ( lua_State *  L )

static

Definition at line 556 of file lmathlib.cpp.

References I2d(), I2UInt(), lua_gettop(), lua_pushinteger(), lua_pushnumber(), lua_touserdata(), lua_upvalueindex, luaL_argcheck, luaL_checkinteger(), luaL_error(), nextrand(), p, project(), and RanState::s.

math_randomseed()

static int math_randomseed ( lua_State *  L )

static

Definition at line 617 of file lmathlib.cpp.

References lua_isnone, lua_touserdata(), lua_upvalueindex, luaL_checkinteger(), luaL_optinteger(), randseed(), RanState::s, and setseed().

math_sin()

static int math_sin ( lua_State *  L )

static

Definition at line 40 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_sqrt()

static int math_sqrt ( lua_State *  L )

static

Definition at line 156 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_tan()

static int math_tan ( lua_State *  L )

static

Definition at line 50 of file lmathlib.cpp.

References l_mathop, lua_pushnumber(), and luaL_checknumber().

math_toint()

static int math_toint ( lua_State *  L )

static

Definition at line 73 of file lmathlib.cpp.

References lua_pushinteger(), lua_tointegerx(), luaL_checkany(), luaL_pushfail, and n.

math_type()

static int math_type ( lua_State *  L )

static

Definition at line 233 of file lmathlib.cpp.

References lua_isinteger(), lua_pushstring(), LUA_TNUMBER, lua_type(), luaL_checkany(), and luaL_pushfail.

math_ult()

static int math_ult ( lua_State *  L )

static

Definition at line 162 of file lmathlib.cpp.

References a, b, lua_pushboolean(), and luaL_checkinteger().

nextrand()

static Rand64 nextrand ( Rand64 *  state )

static

Definition at line 436 of file lmathlib.cpp.

References Ishl(), Ixor(), rotl(), rotl1(), t, times5(), and times9().

Referenced by math_random(), project(), and setseed().

packI()

static Rand64 packI ( lu_int32  h, lu_int32  l  )

static

Definition at line 381 of file lmathlib.cpp.

References Rand64::h, and Rand64::l.

Referenced by Iadd(), Int2I(), Ishl(), rotl(), and rotl1().

project()

static lua_Unsigned project ( lua_Unsigned  ran, lua_Unsigned  n, RanState *  state  )

static

Definition at line 531 of file lmathlib.cpp.

References I2UInt(), lua_assert, n, nextrand(), and RanState::s.

Referenced by math_random().

pushnumint()

static void pushnumint ( lua_State *  L, lua_Number  d  )

static

Definition at line 86 of file lmathlib.cpp.

References lua_numbertointeger, lua_pushinteger(), lua_pushnumber(), and n.

Referenced by math_ceil(), math_floor(), and math_modf().

randseed()

static void randseed ( lua_State *  L, RanState *  state  )

static

Definition at line 610 of file lmathlib.cpp.

References RanState::s, and setseed().

Referenced by math_randomseed(), and setrandfunc().

rotl()

static Rand64 rotl ( Rand64  i, int  n  )

static

Definition at line 419 of file lmathlib.cpp.

References Rand64::h, Rand64::l, lua_assert, packI(), and trim32.

Referenced by nextrand().

rotl1()

static Rand64 rotl1 ( Rand64  i, int  n  )

static

Definition at line 426 of file lmathlib.cpp.

References Rand64::h, Rand64::l, lua_assert, n, packI(), and trim32.

Referenced by nextrand().

setrandfunc()

static void setrandfunc ( lua_State *  L )

static

Definition at line 641 of file lmathlib.cpp.

References e, l_mathop, lua_newuserdatauv(), lua_pop, lua_pushinteger(), lua_pushnumber(), luaL_checkinteger(), luaL_checknumber(), luaL_setfuncs(), and randseed().

Referenced by luaopen_math().

setseed()

static void setseed ( lua_State *  L, Rand64 *  state, lua_Unsigned  n1, lua_Unsigned  n2  )

static

Definition at line 591 of file lmathlib.cpp.

References i, Int2I(), lua_pushinteger(), and nextrand().

Referenced by math_randomseed(), and randseed().

times5()

static Rand64 times5 ( Rand64  i )

static

Definition at line 409 of file lmathlib.cpp.

References Iadd(), and Ishl().

Referenced by nextrand().

times9()

static Rand64 times9 ( Rand64  i )

static

Definition at line 414 of file lmathlib.cpp.

References Iadd(), and Ishl().

Referenced by nextrand().

Variable Documentation

mathlib

const luaL_Reg mathlib[]

static

Definition at line 704 of file lmathlib.cpp.

randfuncs

const luaL_Reg randfuncs[]

static

Initial value:

= {
  {"random", math_random},
  {"randomseed", math_randomseed},
  {NULL, NULL}
}

Definition at line 631 of file lmathlib.cpp.