| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // integral_constant |
| |
| #include <type_traits> |
| #include <cassert> |
| |
| int main() |
| { |
| typedef std::integral_constant<int, 5> _5; |
| static_assert(_5::value == 5, ""); |
| static_assert((std::is_same<_5::value_type, int>::value), ""); |
| static_assert((std::is_same<_5::type, _5>::value), ""); |
| #ifndef _LIBCPP_HAS_NO_CONSTEXPR |
| static_assert((_5() == 5), ""); |
| #else |
| assert(_5() == 5); |
| #endif |
| |
| static_assert(std::false_type::value == false, ""); |
| static_assert((std::is_same<std::false_type::value_type, bool>::value), ""); |
| static_assert((std::is_same<std::false_type::type, std::false_type>::value), ""); |
| |
| static_assert(std::true_type::value == true, ""); |
| static_assert((std::is_same<std::true_type::value_type, bool>::value), ""); |
| static_assert((std::is_same<std::true_type::type, std::true_type>::value), ""); |
| |
| std::false_type f1; |
| std::false_type f2 = f1; |
| |
| std::true_type t1; |
| std::true_type t2 = t1; |
| } |