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38 lines
1.1 KiB
C++
38 lines
1.1 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 weekday_last;
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// constexpr bool ok() const noexcept;
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// Returns: wd_.ok()
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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 weekday = std::chrono::weekday;
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using weekday_last = std::chrono::weekday_last;
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ASSERT_NOEXCEPT( std::declval<const weekday_last>().ok());
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ASSERT_SAME_TYPE(bool, decltype(std::declval<const weekday_last>().ok()));
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static_assert( weekday_last{weekday{0}}.ok(), "");
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static_assert( weekday_last{weekday{1}}.ok(), "");
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static_assert(!weekday_last{weekday{7}}.ok(), "");
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for (unsigned i = 0; i <= 255; ++i)
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assert(weekday_last{weekday{i}}.ok() == weekday{i}.ok());
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}
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