lua/lstring.h
2000-12-28 10:55:41 -02:00

51 lines
1.2 KiB
C

/*
** $Id: lstring.h,v 1.25 2000/11/24 17:39:56 roberto Exp roberto $
** String table (keep all strings handled by Lua)
** See Copyright Notice in lua.h
*/
#ifndef lstring_h
#define lstring_h
#include "lobject.h"
#include "lstate.h"
/*
** type equivalent to TString, but with maximum alignment requirements
*/
union L_UTString {
TString ts;
union L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */
};
/*
** any TString with mark>=FIXMARK is never collected.
** Marks>=RESERVEDMARK are used to identify reserved words.
*/
#define FIXMARK 2
#define RESERVEDMARK 3
#define sizestring(l) ((lint32)sizeof(TString) + \
((lint32)(l+1)-TSPACK)*(lint32)sizeof(char))
#define sizeudata(l) ((luint32)sizeof(union L_UTString)+(l))
void luaS_init (lua_State *L);
void luaS_resize (lua_State *L, stringtable *tb, int newsize);
TString *luaS_newudata (lua_State *L, size_t s, void *udata);
TString *luaS_createudata (lua_State *L, void *udata, int tag);
void luaS_freeall (lua_State *L);
TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
TString *luaS_new (lua_State *L, const char *str);
TString *luaS_newfixed (lua_State *L, const char *str);
#endif