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libcxx/test/std/utilities/time/time.cal/time.cal.weekday/time.cal.weekday.members/operator[].pass.cpp

60 lines
1.8 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;
// constexpr weekday_indexed operator[](unsigned index) const noexcept;
// constexpr weekday_last operator[](last_spec) const noexcept;
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "../../euclidian.h"
int main()
{
using weekday = std::chrono::weekday;
using weekday_last = std::chrono::weekday_last;
using weekday_indexed = std::chrono::weekday_indexed;
constexpr weekday Sunday = std::chrono::Sunday;
ASSERT_NOEXCEPT( std::declval<weekday>()[1U]);
ASSERT_SAME_TYPE(weekday_indexed, decltype(std::declval<weekday>()[1U]));
ASSERT_NOEXCEPT( std::declval<weekday>()[std::chrono::last]);
ASSERT_SAME_TYPE(weekday_last, decltype(std::declval<weekday>()[std::chrono::last]));
static_assert(Sunday[2].weekday() == Sunday, "");
static_assert(Sunday[2].index () == 2, "");
for (unsigned i = 0; i <= 6; ++i)
{
weekday wd(i);
weekday_last wdl = wd[std::chrono::last];
assert(wdl.weekday() == wd);
assert(wdl.ok());
}
for (unsigned i = 0; i <= 6; ++i)
for (unsigned j = 1; j <= 5; ++j)
{
weekday wd(i);
weekday_indexed wdi = wd[j];
assert(wdi.weekday() == wd);
assert(wdi.index() == j);
assert(wdi.ok());
}
}