hash_type_index.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <typeindex>
11
12// struct hash<type_index>
13//     : public unary_function<type_index, size_t>
14// {
15//     size_t operator()(type_index index) const;
16// };
17
18#include <typeindex>
19#include <type_traits>
20
21int main()
22{
23    static_assert((std::is_base_of<std::unary_function<std::type_index, std::size_t>,
24                                   std::hash<std::type_index> >::value), "");
25}
26