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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
//
//===----------------------------------------------------------------------===//
// <array>
// template <class T, size_t N>
// bool operator==(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20
// template <class T, size_t N>
// bool operator!=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
// template <class T, size_t N>
// bool operator<(const array<T,N>& x, const array<T,N>& y); // removed in C++20
// template <class T, size_t N>
// bool operator>(const array<T,N>& x, const array<T,N>& y); // removed in C++20
// template <class T, size_t N>
// bool operator<=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
// template <class T, size_t N>
// bool operator>=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
#include <array>
#include <cassert>
#include "test_macros.h"
#include "test_comparisons.h"
TEST_CONSTEXPR_CXX20 bool tests() {
// Arrays where the elements support all comparison operators
AssertComparisonsReturnBool<std::array<int, 3> >();
{
typedef std::array<int, 3> C;
const C c1 = {1, 2, 3};
const C c2 = {1, 2, 3};
const C c3 = {3, 2, 1};
const C c4 = {1, 2, 1};
assert(testComparisons(c1, c2, true, false));
assert(testComparisons(c1, c3, false, true));
assert(testComparisons(c1, c4, false, false));
}
// Empty array
{
typedef std::array<int, 0> C;
const C c1 = {};
const C c2 = {};
assert(testComparisons(c1, c2, true, false));
}
// Arrays where the elements support only less and equality comparisons
AssertComparisonsReturnBool<std::array<LessAndEqComp, 3> >();
{
typedef std::array<LessAndEqComp, 3> C;
const C c1 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
const C c2 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
const C c3 = {LessAndEqComp(3), LessAndEqComp(2), LessAndEqComp(1)};
const C c4 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(1)};
assert(testComparisons(c1, c2, true, false));
assert(testComparisons(c1, c3, false, true));
assert(testComparisons(c1, c4, false, false));
}
// Empty array where the elements support only less and equality comparisons
{
typedef std::array<LessAndEqComp, 0> C;
const C c1 = {};
const C c2 = {};
assert(testComparisons(c1, c2, true, false));
}
return true;
}
int main(int, char**) {
tests();
#if TEST_STD_VER >= 20
static_assert(tests());
#endif
return 0;
}
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