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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// <chrono>
// time_point
// template<class Clock, class Duration1,
// three_way_comparable_with<Duration1> Duration2>
// constexpr auto operator<=>(const time_point<Clock, Duration1>& lhs,
// const time_point<Clock, Duration2>& rhs);
#include <cassert>
#include <chrono>
#include <ratio>
#include "test_comparisons.h"
constexpr void test_with_integral_ticks_value() {
using Clock = std::chrono::system_clock;
using Duration1 = std::chrono::milliseconds;
using Duration2 = std::chrono::microseconds;
using T1 = std::chrono::time_point<Clock, Duration1>;
using T2 = std::chrono::time_point<Clock, Duration2>;
{
T1 t1(Duration1(3));
T1 t2(Duration1(3));
assert((t1 <=> t2) == std::strong_ordering::equal);
assert(testOrder(t1, t2, std::strong_ordering::equal));
}
{
T1 t1(Duration1(3));
T1 t2(Duration1(4));
assert((t1 <=> t2) == std::strong_ordering::less);
assert(testOrder(t1, t2, std::strong_ordering::less));
}
{
T1 t1(Duration1(3));
T2 t2(Duration2(3000));
assert((t1 <=> t2) == std::strong_ordering::equal);
assert(testOrder(t1, t2, std::strong_ordering::equal));
}
{
T1 t1(Duration1(3));
T2 t2(Duration2(3001));
assert((t1 <=> t2) == std::strong_ordering::less);
assert(testOrder(t1, t2, std::strong_ordering::less));
assert((t2 <=> t1) == std::strong_ordering::greater);
assert(testOrder(t2, t1, std::strong_ordering::greater));
}
}
constexpr void test_with_integral_ticks_value_and_custom_period_value() {
using Clock = std::chrono::system_clock;
using DInt30Hz = std::chrono::duration<int, std::ratio<1, 30>>;
using DInt60Hz = std::chrono::duration<int, std::ratio<1, 60>>;
using TIntR1 = std::chrono::time_point<Clock, DInt30Hz>;
using TIntR2 = std::chrono::time_point<Clock, DInt60Hz>;
{
TIntR1 t1(DInt30Hz(10));
TIntR2 t2(DInt60Hz(20));
assert((t1 <=> t2) == std::strong_ordering::equal);
assert(testOrder(t1, t2, std::strong_ordering::equal));
}
{
TIntR1 t1(DInt30Hz(10));
TIntR2 t2(DInt60Hz(21));
assert((t1 <=> t2) == std::strong_ordering::less);
assert(testOrder(t1, t2, std::strong_ordering::less));
}
{
TIntR1 t1(DInt30Hz(11));
TIntR2 t2(DInt60Hz(20));
assert((t1 <=> t2) == std::strong_ordering::greater);
assert(testOrder(t1, t2, std::strong_ordering::greater));
}
}
constexpr void test_with_floating_point_ticks_value() {
using Clock = std::chrono::system_clock;
using DF30Hz = std::chrono::duration<double, std::ratio<1, 30>>;
using DF60Hz = std::chrono::duration<double, std::ratio<1, 60>>;
using F1 = std::chrono::time_point<Clock, DF30Hz>;
using F2 = std::chrono::time_point<Clock, DF60Hz>;
// No equality comparison test for floating point values.
{
F1 t1(DF30Hz(3.5));
F2 t2(DF60Hz(7.1));
assert((t1 <=> t2) == std::weak_ordering::less);
assert(testOrder(t1, t2, std::weak_ordering::less));
}
{
F1 t1(DF30Hz(3.6));
F2 t2(DF60Hz(7.0));
assert((t1 <=> t2) == std::weak_ordering::greater);
assert(testOrder(t1, t2, std::weak_ordering::greater));
}
}
constexpr bool test() {
test_with_integral_ticks_value();
test_with_integral_ticks_value_and_custom_period_value();
test_with_floating_point_ticks_value();
return true;
}
int main(int, char**) {
assert(test());
static_assert(test());
return 0;
}
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