integral_constant.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// type_traits
11
12// integral_constant
13
14#include <type_traits>
15
16int main()
17{
18    typedef std::integral_constant<int, 5> _5;
19    static_assert(_5::value == 5, "");
20    static_assert((std::is_same<_5::value_type, int>::value), "");
21    static_assert((std::is_same<_5::type, _5>::value), "");
22
23    static_assert(std::false_type::value == false, "");
24    static_assert((std::is_same<std::false_type::value_type, bool>::value), "");
25    static_assert((std::is_same<std::false_type::type, std::false_type>::value), "");
26
27    static_assert(std::true_type::value == true, "");
28    static_assert((std::is_same<std::true_type::value_type, bool>::value), "");
29    static_assert((std::is_same<std::true_type::type, std::true_type>::value), "");
30
31    std::false_type f1;
32    std::false_type f2 = f1;
33
34    std::true_type t1;
35    std::true_type t2 = t1;
36}
37