//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <ext/hash_map>
int main()
{
__gnu_cxx::hash_map<int, int> m;
m[1] = 1;
const __gnu_cxx::hash_map<int, int> &cm = m;
cm.find(1)->second = 2; // error
}