detail (comment)

This commit is contained in:
Roberto Ierusalimschy 2011-10-25 10:01:20 -02:00
parent 475e6c5352
commit 5a568a3b01
1 changed files with 2 additions and 2 deletions

View File

@ -1,5 +1,5 @@
/*
** $Id: lstrlib.c,v 1.170 2011/06/28 17:13:52 roberto Exp roberto $
** $Id: lstrlib.c,v 1.171 2011/08/09 20:58:29 roberto Exp roberto $
** Standard library for string operations and pattern-matching
** See Copyright Notice in lua.h
*/
@ -138,7 +138,7 @@ static int str_byte (lua_State *L) {
if (pose > l) pose = l;
if (posi > pose) return 0; /* empty interval; return no values */
n = (int)(pose - posi + 1);
if (posi + n <= pose) /* overflow? */
if (posi + n <= pose) /* (size_t -> int) overflow? */
return luaL_error(L, "string slice too long");
luaL_checkstack(L, n, "string slice too long");
for (i=0; i<n; i++)