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new function lua_copy

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Roberto Ierusalimschy
2009-10-05 13:44:33 -03:00
parent ba21aa8b2b
commit a5382b763c
7 changed files with 46 additions and 30 deletions
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5
lbaselib.c
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@@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.217 2009/07/15 17:35:20 roberto Exp roberto $
** $Id: lbaselib.c,v 1.218 2009/08/04 18:20:18 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@@ -432,8 +432,7 @@ static int luaB_xpcall (lua_State *L) {
int n = lua_gettop(L);
luaL_argcheck(L, n >= 2, 2, "value expected");
lua_pushvalue(L, 1); /* exchange function... */
lua_pushvalue(L, 2); /* ...and error handler */
lua_replace(L, 1);
lua_copy(L, 2, 1); /* ...and error handler */
lua_replace(L, 2);
status = lua_pcallk(L, n - 2, LUA_MULTRET, 1, 1, pcallcont);
luaL_checkstack(L, 1, NULL);