| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // <chrono> |
| // class day; |
| |
| // constexpr bool ok() const noexcept; |
| // Returns: 1 <= d_ && d_ <= 31 |
| |
| #include <chrono> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main() |
| { |
| using day = std::chrono::day; |
| ASSERT_NOEXCEPT( std::declval<const day>().ok()); |
| ASSERT_SAME_TYPE(bool, decltype(std::declval<const day>().ok())); |
| |
| static_assert(!day{0}.ok(), ""); |
| static_assert( day{1}.ok(), ""); |
| |
| assert(!day{0}.ok()); |
| for (unsigned i = 1; i <= 31; ++i) |
| assert(day{i}.ok()); |
| for (unsigned i = 32; i <= 255; ++i) |
| assert(!day{i}.ok()); |
| } |