commit a73ded21535c79a081cae16b12482e3e70441e6c
parent 0ec4c473df871ce88d3c06f7a801c557cb7f9d86
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 7 Jul 2003 10:34:03 -0300
Move nothing when there is nothing to move
Diffstat:
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lapi.c b/lapi.c
@@ -1,5 +1,5 @@
/*
-** $Id: lapi.c,v 1.238 2003/05/09 20:16:54 roberto Exp roberto $
+** $Id: lapi.c,v 1.239 2003/05/14 21:06:56 roberto Exp roberto $
** Lua API
** See Copyright Notice in lua.h
*/
@@ -96,6 +96,7 @@ LUA_API int lua_checkstack (lua_State *L, int size) {
LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) {
int i;
+ if (from == to) return;
lua_lock(to);
api_checknelems(from, n);
from->top -= n;