| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 9 | |
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| 10 | // <chrono> |
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| 11 | // class day; |
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| 12 | |
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| 13 | // day() = default; |
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| 14 | // explicit constexpr day(unsigned d) noexcept; |
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| 15 | // explicit constexpr operator unsigned() const noexcept; |
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| 16 | |
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| 17 | // Effects: Constructs an object of type day by initializing d_ with d. |
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| 18 | // The value held is unspecified if d is not in the range [0, 255]. |
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| 19 | |
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| 20 | #include <chrono> |
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| 21 | #include <type_traits> |
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| 22 | #include <cassert> |
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| 23 | |
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| 24 | #include "test_macros.h" |
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| 25 | |
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| 26 | int main(int, char**) |
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| 27 | { |
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| 28 | using day = std::chrono::day; |
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| 29 | |
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| 30 | ASSERT_NOEXCEPT(day{}); |
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| 31 | ASSERT_NOEXCEPT(day(0U)); |
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| 32 | ASSERT_NOEXCEPT(static_cast<unsigned>(day(0U))); |
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| 33 | |
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| 34 | constexpr day d0{}; |
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| 35 | static_assert(static_cast<unsigned>(d0) == 0, "" ); |
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| 36 | |
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| 37 | constexpr day d1{1}; |
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| 38 | static_assert(static_cast<unsigned>(d1) == 1, "" ); |
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| 39 | |
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| 40 | for (unsigned i = 0; i <= 255; ++i) |
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| 41 | { |
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| 42 | day d(i); |
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| 43 | assert(static_cast<unsigned>(d) == i); |
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| 44 | } |
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| 45 | |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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