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libcxx/test/std/utilities/time/time.duration/time.duration.special/min.pass.cpp

49 lines
1.2 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.
//
//===----------------------------------------------------------------------===//
// <chrono>
// duration
// static constexpr duration min(); // noexcept after C++17
#include <chrono>
#include <limits>
#include <cassert>
#include "test_macros.h"
#include "../../rep.h"
template <class D>
void test()
{
LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<typename D::rep>::min());
#if TEST_STD_VER > 17
ASSERT_NOEXCEPT( std::chrono::duration_values<typename D::rep>::min());
#endif
{
typedef typename D::rep Rep;
Rep min_rep = std::chrono::duration_values<Rep>::min();
assert(D::min().count() == min_rep);
}
#if TEST_STD_VER >= 11
{
typedef typename D::rep Rep;
constexpr Rep min_rep = std::chrono::duration_values<Rep>::min();
static_assert(D::min().count() == min_rep, "");
}
#endif
}
int main()
{
test<std::chrono::duration<int> >();
test<std::chrono::duration<Rep> >();
}