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Can someone confirm that userdata created(in Lua 4) by

     data = (data *) malloc(sizeof(data_t));
     lua_pushusertag(L, (void *)data, LUA_ANYTAG);
     lua_pushcclosure(L, l_myfunc, 1);

is not ever collected.

Rephrased - is it true that userdata is only collected when a
"gc" method is set?
DB