mirror of
https://github.com/lua/lua
synced 2024-11-23 05:11:45 +03:00
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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** $Id: lstring.h,v 1.62 2017/07/27 13:50:16 roberto Exp roberto $
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** String table (keep all strings handled by Lua)
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** See Copyright Notice in lua.h
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*/
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#ifndef lstring_h
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#define lstring_h
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#include "lgc.h"
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#include "lobject.h"
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#include "lstate.h"
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/*
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** Memory-allocation error message must be preallocated (it cannot
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** be created after memory is exhausted)
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*/
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#define MEMERRMSG "not enough memory"
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#define sizelstring(l) (sizeof(union UTString) + ((l) + 1) * sizeof(char))
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#define sizeludata(l) (sizeof(union UUdata) + (l))
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#define sizeudata(u) sizeludata((u)->len)
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#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
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(sizeof(s)/sizeof(char))-1))
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/*
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** test whether a string is a reserved word
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*/
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#define isreserved(s) ((s)->tt == LUA_TSHRSTR && (s)->extra > 0)
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/*
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** equality for short strings, which are always internalized
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*/
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#define eqshrstr(a,b) check_exp((a)->tt == LUA_TSHRSTR, (a) == (b))
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LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
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LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts);
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LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
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LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
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LUAI_FUNC void luaS_clearcache (global_State *g);
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LUAI_FUNC void luaS_init (lua_State *L);
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LUAI_FUNC void luaS_remove (lua_State *L, TString *ts);
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LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s);
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LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
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LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
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LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l);
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#endif
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