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use of NaN as key breaks some invariants

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Roberto Ierusalimschy
2002-07-02 14:54:23 -03:00
parent b30ec2532c
commit 84ad1eea81
1 changed files with 3 additions and 1 deletions
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4
ltable.c
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@@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 1.111 2002/06/24 20:18:38 roberto Exp roberto $
** $Id: ltable.c,v 1.112 2002/07/01 19:31:10 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@@ -468,6 +468,8 @@ TObject *luaH_set (lua_State *L, Table *t, const TObject *key) {
return cast(TObject *, p);
else {
if (ttype(key) == LUA_TNIL) luaG_runerror(L, "table index is nil");
else if (ttype(key) == LUA_TNUMBER && nvalue(key) != nvalue(key))
luaG_runerror(L, "table index is NaN");
return newkey(L, t, key);
}
}