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 
main()21 int main()
22 {
23     typedef std::hash<std::type_index> H;
24     static_assert((std::is_same<typename H::argument_type, std::type_index>::value), "" );
25     static_assert((std::is_same<typename H::result_type, std::size_t>::value), "" );
26 }
27