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libcxx/test/std/utilities/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.pass.cpp

52 lines
1.4 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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++98, c++03, c++11, c++14, c++17
// <chrono>
// class weekday;
// weekday() = default;
// explicit constexpr weekday(unsigned wd) noexcept;
// constexpr weekday(const sys_days& dp) noexcept;
// explicit constexpr weekday(const local_days& dp) noexcept;
//
// explicit constexpr operator unsigned() const noexcept;
// Effects: Constructs an object of type weekday by initializing m_ with m.
// The value held is unspecified if d is not in the range [0, 255].
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using weekday = std::chrono::weekday;
ASSERT_NOEXCEPT(weekday{});
ASSERT_NOEXCEPT(weekday(1));
ASSERT_NOEXCEPT(static_cast<unsigned>(weekday(1)));
constexpr weekday m0{};
static_assert(static_cast<unsigned>(m0) == 0, "");
constexpr weekday m1{1};
static_assert(static_cast<unsigned>(m1) == 1, "");
for (unsigned i = 0; i <= 255; ++i)
{
weekday m(i);
assert(static_cast<unsigned>(m) == i);
}
// TODO - sys_days and local_days ctor tests
}