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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:
Mlapi.c | 3++-
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;