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52 lines
1.8 KiB
C++
52 lines
1.8 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 month_weekday;
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// constexpr bool ok() const noexcept;
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// Returns: m_.ok() && wdi_.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 month_weekday = std::chrono::month_weekday;
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using month = std::chrono::month;
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using weekday = std::chrono::weekday;
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using weekday_indexed = std::chrono::weekday_indexed;
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constexpr weekday Sunday = std::chrono::Sunday;
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ASSERT_NOEXCEPT( std::declval<const month_weekday>().ok());
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ASSERT_SAME_TYPE(bool, decltype(std::declval<const month_weekday>().ok()));
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static_assert(!month_weekday{month{}, weekday_indexed{}}.ok(), "");
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static_assert( month_weekday{std::chrono::May, weekday_indexed{Sunday, 2}}.ok(), "");
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assert(!(month_weekday(std::chrono::April, weekday_indexed{Sunday, 0}).ok()));
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assert( (month_weekday{std::chrono::March, weekday_indexed{Sunday, 1}}.ok()));
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for (unsigned i = 1; i <= 12; ++i)
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for (unsigned j = 0; j <= 6; ++j)
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{
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month_weekday mwd{month{i}, weekday_indexed{Sunday, j}};
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assert(mwd.ok() == (j >= 1 && j <= 5));
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}
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// If the month is not ok, all the weekday_indexed are bad
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for (unsigned i = 1; i <= 10; ++i)
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assert(!(month_weekday{month{13}, weekday_indexed{Sunday, i}}.ok()));
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}
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