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47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// <chrono>
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// class year;
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// year() = default;
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// explicit constexpr year(int m) noexcept;
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// explicit constexpr operator int() const noexcept;
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// Effects: Constructs an object of type year by initializing y_ with y.
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// The value held is unspecified if d is not in the range [0, 255].
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#include <chrono>
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#include <type_traits>
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#include <cassert>
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#include "test_macros.h"
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int main()
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{
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using year = std::chrono::year;
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ASSERT_NOEXCEPT(year{});
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ASSERT_NOEXCEPT(year(0U));
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ASSERT_NOEXCEPT(static_cast<int>(year(0U)));
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constexpr year y0{};
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static_assert(static_cast<int>(y0) == 0, "");
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constexpr year y1{1};
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static_assert(static_cast<int>(y1) == 1, "");
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for (int i = 0; i <= 2550; i += 7)
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{
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year year(i);
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assert(static_cast<int>(year) == i);
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}
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}
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