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/*
** $Id: lauxlib.h,v 1.16 1999/12/03 11:26:23 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
#ifndef lauxlib_h
#define lauxlib_h
#include "lua.h"
struct luaL_reg {
const char *name;
lua_CFunction func;
};
void luaL_openlib (lua_State *L, const struct luaL_reg *l, int n);
void luaL_argerror (lua_State *L, int numarg, const char *extramsg);
const char *luaL_check_lstr (lua_State *L, int numArg, long *len);
const char *luaL_opt_lstr (lua_State *L, int numArg, const char *def, long *len);
double luaL_check_number (lua_State *L, int numArg);
double luaL_opt_number (lua_State *L, int numArg, double def);
lua_Object luaL_functionarg (lua_State *L, int arg);
lua_Object luaL_tablearg (lua_State *L, int arg);
lua_Object luaL_nonnullarg (lua_State *L, int numArg);
void luaL_verror (lua_State *L, const char *fmt, ...);
char *luaL_openspace (lua_State *L, int size);
void luaL_resetbuffer (lua_State *L);
void luaL_addchar (lua_State *L, int c);
int luaL_getsize (lua_State *L);
void luaL_addsize (lua_State *L, int n);
int luaL_newbuffer (lua_State *L, int size);
void luaL_oldbuffer (lua_State *L, int old);
char *luaL_buffer (lua_State *L);
int luaL_findstring (const char *name, const char *const list[]);
void luaL_chunkid (char *out, const char *source, int len);
void luaL_filesource (char *out, const char *filename, int len);
#ifdef LUA_REENTRANT
/*
** ===============================================================
** some useful macros
** ===============================================================
*/
#define luaL_arg_check(L, cond,numarg,extramsg) if (!(cond)) \
luaL_argerror(L, numarg,extramsg)
#define luaL_check_string(L,n) (luaL_check_lstr(L, (n), NULL))
#define luaL_opt_string(L,n,d) (luaL_opt_lstr(L, (n), (d), NULL))
#define luaL_check_int(L,n) ((int)luaL_check_number(L, n))
#define luaL_check_long(L,n) ((long)luaL_check_number(L, n))
#define luaL_opt_int(L,n,d) ((int)luaL_opt_number(L, n,d))
#define luaL_opt_long(L,n,d) ((long)luaL_opt_number(L, n,d))
#define luaL_openl(L,a) luaL_openlib(L, a, (sizeof(a)/sizeof(a[0])))
#else
/*
** ===============================================================
** Macros for single-state use
** ===============================================================
*/
#define luaL_arg_check(cond,numarg,extramsg) if (!(cond)) \
luaL_argerror(numarg,extramsg)
#define luaL_check_string(n) (luaL_check_lstr((n), NULL))
#define luaL_opt_string(n, d) (luaL_opt_lstr((n), (d), NULL))
#define luaL_check_int(n) ((int)luaL_check_number(n))
#define luaL_check_long(n) ((long)luaL_check_number(n))
#define luaL_opt_int(n,d) ((int)luaL_opt_number(n,d))
#define luaL_opt_long(n,d) ((long)luaL_opt_number(n,d))
#define luaL_openl(a) luaL_openlib(a, (sizeof(a)/sizeof(a[0])))
#define luaL_openlib(l,n) (luaL_openlib)(lua_state,l,n)
#define luaL_argerror(numarg,extramsg) \
(luaL_argerror)(lua_state,numarg,extramsg)
#define luaL_check_lstr(numArg,len) (luaL_check_lstr)(lua_state,numArg,len)
#define luaL_opt_lstr(numArg,def,len) \
(luaL_opt_lstr)(lua_state,numArg,def,len)
#define luaL_check_number(numArg) (luaL_check_number)(lua_state,numArg)
#define luaL_opt_number(numArg,def) (luaL_opt_number)(lua_state,numArg,def)
#define luaL_functionarg(arg) (luaL_functionarg)(lua_state,arg)
#define luaL_tablearg(arg) (luaL_tablearg)(lua_state,arg)
#define luaL_nonnullarg(numArg) (luaL_nonnullarg)(lua_state,numArg)
#define luaL_openspace(size) (luaL_openspace)(lua_state,size)
#define luaL_resetbuffer() (luaL_resetbuffer)(lua_state)
#define luaL_addchar(c) (luaL_addchar)(lua_state,c)
#define luaL_getsize() (luaL_getsize)(lua_state)
#define luaL_addsize(n) (luaL_addsize)(lua_state,n)
#define luaL_newbuffer(size) (luaL_newbuffer)(lua_state,size)
#define luaL_oldbuffer(old) (luaL_oldbuffer)(lua_state,old)
#define luaL_buffer() (luaL_buffer)(lua_state)
#endif
#endif
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