//===----------------------------------------------------------------------===//
//
// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <functional>

// template <class T>
// struct hash
//     : public unary_function<T, size_t>
// {
//     size_t operator()(T val) const;
// };

// Not very portable

#include <thread>
#include <cassert>

int main()
{
    std::thread::id id1;
    std::thread::id id2 = std::this_thread::get_id();
    typedef std::hash<std::thread::id> H;
    H h;
    assert(h(id1) != h(id2));
}