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libcxx/test/std/utilities/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp

39 lines
1.1 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_indexed;
// constexpr unsigned index() const noexcept;
// Returns: index_
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using weekday = std::chrono::weekday;
using weekday_indexed = std::chrono::weekday_indexed;
ASSERT_NOEXCEPT( std::declval<const weekday_indexed>().index());
ASSERT_SAME_TYPE(unsigned, decltype(std::declval<const weekday_indexed>().index()));
static_assert( weekday_indexed{}.index() == 0, "");
for (unsigned i = 1; i <= 5; ++i)
{
weekday_indexed wdi(weekday{2}, i);
assert( static_cast<unsigned>(wdi.index()) == i);
}
}