79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <array>
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// template <class T, size_t N>
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// bool operator==(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20
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// template <class T, size_t N>
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// bool operator!=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
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// template <class T, size_t N>
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// bool operator<(const array<T,N>& x, const array<T,N>& y); // removed in C++20
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// template <class T, size_t N>
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// bool operator>(const array<T,N>& x, const array<T,N>& y); // removed in C++20
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// template <class T, size_t N>
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// bool operator<=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
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// template <class T, size_t N>
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// bool operator>=(const array<T,N>& x, const array<T,N>& y); // removed in C++20
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#include <array>
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#include <cassert>
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#include "test_macros.h"
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#include "test_comparisons.h"
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TEST_CONSTEXPR_CXX20 bool tests() {
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// Arrays where the elements support all comparison operators
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AssertComparisonsReturnBool<std::array<int, 3> >();
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{
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typedef std::array<int, 3> C;
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const C c1 = {1, 2, 3};
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const C c2 = {1, 2, 3};
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const C c3 = {3, 2, 1};
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const C c4 = {1, 2, 1};
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assert(testComparisons(c1, c2, true, false));
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assert(testComparisons(c1, c3, false, true));
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assert(testComparisons(c1, c4, false, false));
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}
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// Empty array
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{
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typedef std::array<int, 0> C;
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const C c1 = {};
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const C c2 = {};
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assert(testComparisons(c1, c2, true, false));
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}
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// Arrays where the elements support only less and equality comparisons
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AssertComparisonsReturnBool<std::array<LessAndEqComp, 3> >();
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{
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typedef std::array<LessAndEqComp, 3> C;
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const C c1 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
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const C c2 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(3)};
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const C c3 = {LessAndEqComp(3), LessAndEqComp(2), LessAndEqComp(1)};
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const C c4 = {LessAndEqComp(1), LessAndEqComp(2), LessAndEqComp(1)};
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assert(testComparisons(c1, c2, true, false));
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assert(testComparisons(c1, c3, false, true));
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assert(testComparisons(c1, c4, false, false));
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}
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// Empty array where the elements support only less and equality comparisons
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{
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typedef std::array<LessAndEqComp, 0> C;
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const C c1 = {};
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const C c2 = {};
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assert(testComparisons(c1, c2, true, false));
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}
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return true;
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}
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int main(int, char**) {
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tests();
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#if TEST_STD_VER >= 20
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static_assert(tests());
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#endif
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return 0;
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}
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