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 // type_traits
11
12 // bool_constant
13
14 #include <type_traits>
15 #include <cassert>
16
17 #include "test_macros.h"
18
main()19 int main()
20 {
21 #if TEST_STD_VER > 14
22 typedef std::bool_constant<true> _t;
23 static_assert(_t::value, "");
24 static_assert((std::is_same<_t::value_type, bool>::value), "");
25 static_assert((std::is_same<_t::type, _t>::value), "");
26 static_assert((_t() == true), "");
27
28 typedef std::bool_constant<false> _f;
29 static_assert(!_f::value, "");
30 static_assert((std::is_same<_f::value_type, bool>::value), "");
31 static_assert((std::is_same<_f::type, _f>::value), "");
32 static_assert((_f() == false), "");
33 #endif
34 }
35