lmathlib.c 文件参考

#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"

lmathlib.c 的引用(Include)关系图:

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类
struct	Rand64
struct	RanState

宏定义
#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)))

类型定义
typedef unsigned long	lu_int32
typedef struct Rand64	Rand64

函数
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)

变量
static const luaL_Reg	randfuncs []
static const luaL_Reg	mathlib []

宏定义说明

FIGS

#define FIGS   l_floatatt(MANT_DIG)

lmathlib_c

#define lmathlib_c

LUA_LIB

#define LUA_LIB

PI

#define PI   (l_mathop(3.141592653589793238462643383279502884))

scaleFIG

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

trim32

#define trim32

(

x

)

((x) & 0xffffffffu)

UONE

#define UONE   ((lu_int32)1)

类型定义说明

lu_int32

typedef unsigned long lu_int32

Rand64

typedef struct Rand64 Rand64

函数说明

I2d()

static lua_Number I2d ( Rand64  x )

static

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I2UInt()

static lua_Unsigned I2UInt ( Rand64  x )

static

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Iadd()

static Rand64 Iadd ( Rand64  i1, Rand64  i2  )

static

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Int2I()

static Rand64 Int2I ( lua_Unsigned  n )

static

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Ishl()

static Rand64 Ishl ( Rand64  i, int  n  )

static

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Ixor()

static void Ixor ( Rand64 *  i1, Rand64  i2  )

static

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luaopen_math()

LUAMOD_API int luaopen_math

(

lua_State *

L

)

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math_abs()

static int math_abs ( lua_State *  L )

static

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math_acos()

static int math_acos ( lua_State *  L )

static

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math_asin()

static int math_asin ( lua_State *  L )

static

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math_atan()

static int math_atan ( lua_State *  L )

static

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math_ceil()

static int math_ceil ( lua_State *  L )

static

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math_cos()

static int math_cos ( lua_State *  L )

static

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math_deg()

static int math_deg ( lua_State *  L )

static

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math_exp()

static int math_exp ( lua_State *  L )

static

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math_floor()

static int math_floor ( lua_State *  L )

static

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math_fmod()

static int math_fmod ( lua_State *  L )

static

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math_log()

static int math_log ( lua_State *  L )

static

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math_max()

static int math_max ( lua_State *  L )

static

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math_min()

static int math_min ( lua_State *  L )

static

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math_modf()

static int math_modf ( lua_State *  L )

static

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math_rad()

static int math_rad ( lua_State *  L )

static

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math_random()

static int math_random ( lua_State *  L )

static

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math_randomseed()

static int math_randomseed ( lua_State *  L )

static

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math_sin()

static int math_sin ( lua_State *  L )

static

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math_sqrt()

static int math_sqrt ( lua_State *  L )

static

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math_tan()

static int math_tan ( lua_State *  L )

static

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math_toint()

static int math_toint ( lua_State *  L )

static

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math_type()

static int math_type ( lua_State *  L )

static

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math_ult()

static int math_ult ( lua_State *  L )

static

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nextrand()

static Rand64 nextrand ( Rand64 *  state )

static

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packI()

static Rand64 packI ( lu_int32  h, lu_int32  l  )

static

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project()

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

static

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pushnumint()

static void pushnumint ( lua_State *  L, lua_Number  d  )

static

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randseed()

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

static

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rotl()

static Rand64 rotl ( Rand64  i, int  n  )

static

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rotl1()

static Rand64 rotl1 ( Rand64  i, int  n  )

static

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setrandfunc()

static void setrandfunc ( lua_State *  L )

static

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setseed()

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

static

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times5()

static Rand64 times5 ( Rand64  i )

static

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times9()

static Rand64 times9 ( Rand64  i )

static

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变量说明

mathlib

const luaL_Reg mathlib[]

static

randfuncs

const luaL_Reg randfuncs[]

static

初始值:

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