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in 'table.move', destination table can be source table even if

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given as an explicit extra argument
This commit is contained in:
Roberto Ierusalimschy 2016-02-25 16:41:54 -03:00
parent 5f3ad5731e
commit 7d6b78ee79
1 changed files with 3 additions and 3 deletions
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6
ltablib.c
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@ -1,5 +1,5 @@
/*
** $Id: ltablib.c,v 1.91 2015/12/14 11:57:38 roberto Exp roberto $
** $Id: ltablib.c,v 1.92 2016/02/08 12:55:19 roberto Exp roberto $
** Library for Table Manipulation
** See Copyright Notice in lua.h
*/
@ -139,7 +139,7 @@ static int tmove (lua_State *L) {
n = e - f + 1; /* number of elements to move */
luaL_argcheck(L, t <= LUA_MAXINTEGER - n + 1, 4,
"destination wrap around");
if (t > e || t <= f || tt != 1) {
if (t > e || t <= f || (tt != 1 && !lua_compare(L, 1, tt, LUA_OPEQ))) {
for (i = 0; i < n; i++) {
lua_geti(L, 1, f + i);
lua_seti(L, tt, t + i);
@ -152,7 +152,7 @@ static int tmove (lua_State *L) {
}
}
}
lua_pushvalue(L, tt); /* return "to table" */
lua_pushvalue(L, tt); /* return destination table */
return 1;
}