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behavior of 'strchr(x, 0)' is ill defined.

This commit is contained in:
Roberto Ierusalimschy 2006-09-18 13:06:41 -03:00
parent d22526ec30
commit 8667f29c3b
1 changed files with 2 additions and 2 deletions
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4
llex.c
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@ -1,5 +1,5 @@
/*
** $Id: llex.c,v 2.21 2006/07/11 15:53:29 roberto Exp roberto $
** $Id: llex.c,v 2.22 2006/08/30 13:19:58 roberto Exp roberto $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@ -162,7 +162,7 @@ void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source) {
static int check_next (LexState *ls, const char *set) {
if (!strchr(set, ls->current))
if (ls->current == '\0' || !strchr(set, ls->current))
return 0;
save_and_next(ls);
return 1;