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no need to handle 0 as a special case in 'table.remove'

This commit is contained in:
Roberto Ierusalimschy 2013-03-07 15:17:24 -03:00
parent a83ed55f1e
commit 15a3738b49
1 changed files with 1 additions and 3 deletions
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4
ltablib.c
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@ -1,5 +1,5 @@
/* /*
** $Id: ltablib.c,v 1.63 2011/11/28 17:26:30 roberto Exp roberto $ ** $Id: ltablib.c,v 1.64 2013/02/06 18:29:03 roberto Exp roberto $
** Library for Table Manipulation ** Library for Table Manipulation
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -70,8 +70,6 @@ static int tremove (lua_State *L) {
int pos = luaL_optint(L, 2, size); int pos = luaL_optint(L, 2, size);
if (pos != size) /* validate 'pos' if given */ if (pos != size) /* validate 'pos' if given */
luaL_argcheck(L, 1 <= pos && pos <= size + 1, 1, "position out of bounds"); luaL_argcheck(L, 1 <= pos && pos <= size + 1, 1, "position out of bounds");
else if (size == 0) /* empty table? */
return 0; /* return nothing (nil) */
lua_rawgeti(L, 1, pos); /* result = t[pos] */ lua_rawgeti(L, 1, pos); /* result = t[pos] */
for ( ; pos < size; pos++) { for ( ; pos < size; pos++) {
lua_rawgeti(L, 1, pos+1); lua_rawgeti(L, 1, pos+1);