lbitlib.cpp File Reference

#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"

Include dependency graph for lbitlib.cpp:

Go to the source code of this file.

Macros
#define	lbitlib_c
#define	LUA_LIB
#define	LUA_NBITS   32
#define	ALLONES   (~(((~(lua_Unsigned)0) << (LUA_NBITS - 1)) << 1))
#define	trim(x)   ((x) & ALLONES)
#define	mask(n)   (~((ALLONES << 1) << ((n) - 1)))

Typedefs
typedef lua_Unsigned	b_uint

Functions
static b_uint	andaux (lua_State *L)
static int	b_and (lua_State *L)
static int	b_test (lua_State *L)
static int	b_or (lua_State *L)
static int	b_xor (lua_State *L)
static int	b_not (lua_State *L)
static int	b_shift (lua_State *L, b_uint r, int i)
static int	b_lshift (lua_State *L)
static int	b_rshift (lua_State *L)
static int	b_arshift (lua_State *L)
static int	b_rot (lua_State *L, int i)
static int	b_lrot (lua_State *L)
static int	b_rrot (lua_State *L)
static int	fieldargs (lua_State *L, int farg, int *width)
static int	b_extract (lua_State *L)
static int	b_replace (lua_State *L)
LUAMOD_API int	luaopen_bit32 (lua_State *L)

Variables
static const luaL_Reg	bitlib []

Macro Definition Documentation

#define ALLONES   (~(((~(lua_Unsigned)0) << (LUA_NBITS - 1)) << 1))

Definition at line 21 of file lbitlib.cpp.

Referenced by b_arshift().

#define lbitlib_c

Definition at line 6 of file lbitlib.cpp.

#define LUA_LIB

Definition at line 7 of file lbitlib.cpp.

#define LUA_NBITS   32

Definition at line 17 of file lbitlib.cpp.

Referenced by b_arshift(), b_rot(), b_shift(), and fieldargs().

#define mask

(

n

)

(~((ALLONES << 1) << ((n) - 1)))

Definition at line 28 of file lbitlib.cpp.

Referenced by cutter::add_sub_image(), AllocFormat(), editor::context_manager::apply_mask_dialog(), b_extract(), b_replace(), create_cursor(), db_sethook(), color_range::debug(), makemask(), and editor::editor_map::mask_to().

#define trim

(

x

)

((x) & ALLONES)

Definition at line 24 of file lbitlib.cpp.

Referenced by andaux(), b_arshift(), b_not(), b_or(), b_rot(), b_shift(), and b_xor().

Typedef Documentation

typedef lua_Unsigned b_uint

Definition at line 31 of file lbitlib.cpp.

Function Documentation

static b_uint andaux ( lua_State *  L )

static

Definition at line 35 of file lbitlib.cpp.

References i, lua_gettop(), luaL_checkunsigned(), and trim.

Referenced by b_and(), and b_test().

static int b_and ( lua_State *  L )

static

Definition at line 44 of file lbitlib.cpp.

References andaux(), and lua_pushunsigned().

static int b_arshift ( lua_State *  L )

static

Definition at line 112 of file lbitlib.cpp.

References ALLONES, b_shift(), i, LUA_NBITS, lua_pushunsigned(), luaL_checkint, luaL_checkunsigned(), and trim.

static int b_extract ( lua_State *  L )

static

Definition at line 166 of file lbitlib.cpp.

References fieldargs(), lua_pushunsigned(), luaL_checkunsigned(), and mask.

static int b_lrot ( lua_State *  L )

static

Definition at line 138 of file lbitlib.cpp.

References b_rot(), and luaL_checkint.

static int b_lshift ( lua_State *  L )

static

Definition at line 102 of file lbitlib.cpp.

References b_shift(), luaL_checkint, and luaL_checkunsigned().

static int b_not ( lua_State *  L )

static

Definition at line 78 of file lbitlib.cpp.

References lua_pushunsigned(), luaL_checkunsigned(), and trim.

static int b_or ( lua_State *  L )

static

Definition at line 58 of file lbitlib.cpp.

References i, lua_gettop(), lua_pushunsigned(), luaL_checkunsigned(), and trim.

static int b_replace ( lua_State *  L )

static

Definition at line 176 of file lbitlib.cpp.

References fieldargs(), lua_pushunsigned(), luaL_checkunsigned(), and mask.

static int b_rot ( lua_State *  L, int  i  )

static

Definition at line 127 of file lbitlib.cpp.

References i, LUA_NBITS, lua_pushunsigned(), luaL_checkunsigned(), and trim.

Referenced by b_lrot(), and b_rrot().

static int b_rrot ( lua_State *  L )

static

Definition at line 143 of file lbitlib.cpp.

References b_rot(), and luaL_checkint.

static int b_rshift ( lua_State *  L )

static

Definition at line 107 of file lbitlib.cpp.

References b_shift(), luaL_checkint, and luaL_checkunsigned().

static int b_shift ( lua_State *  L, b_uint  r, int  i  )

static

Definition at line 85 of file lbitlib.cpp.

References i, LUA_NBITS, lua_pushunsigned(), and trim.

Referenced by b_arshift(), b_lshift(), and b_rshift().

static int b_test ( lua_State *  L )

static

Definition at line 51 of file lbitlib.cpp.

References andaux(), and lua_pushboolean().

static int b_xor ( lua_State *  L )

static

Definition at line 68 of file lbitlib.cpp.

References i, lua_gettop(), lua_pushunsigned(), luaL_checkunsigned(), and trim.

static int fieldargs ( lua_State *  L, int  farg, int *  width  )

static

Definition at line 154 of file lbitlib.cpp.

References LUA_NBITS, luaL_argcheck, luaL_checkint, luaL_error(), and luaL_optint.

Referenced by b_extract(), and b_replace().

LUAMOD_API int luaopen_bit32

(

lua_State *

L

)

Definition at line 207 of file lbitlib.cpp.

References luaL_newlib.

Referenced by lua_kernel_base::lua_kernel_base().

Variable Documentation

const luaL_Reg bitlib[]

static

Initial value:

= {
  {"arshift", b_arshift},
  {"band", b_and},
  {"bnot", b_not},
  {"bor", b_or},
  {"bxor", b_xor},
  {"btest", b_test},
  {"extract", b_extract},
  {"lrotate", b_lrot},
  {"lshift", b_lshift},
  {"replace", b_replace},
  {"rrotate", b_rrot},
  {"rshift", b_rshift},
  {NULL, NULL}
}

Definition at line 189 of file lbitlib.cpp.