| //===----------------------------------------------------------------------===// |
| // |
| // 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 <size_t I, class T, size_t N> T& get(array<T, N>& a); |
| |
| #include <array> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| // std::array is explicitly allowed to be initialized with A a = { init-list };. |
| // Disable the missing braces warning for this reason. |
| #include "disable_missing_braces_warning.h" |
| |
| |
| template <typename ...T> |
| TEST_CONSTEXPR std::array<int, sizeof...(T)> tempArray(T ...args) |
| { |
| return {args...}; |
| } |
| |
| TEST_CONSTEXPR_CXX14 bool tests() |
| { |
| { |
| std::array<double, 1> array = {3.3}; |
| assert(std::get<0>(array) == 3.3); |
| std::get<0>(array) = 99.1; |
| assert(std::get<0>(array) == 99.1); |
| } |
| { |
| std::array<double, 2> array = {3.3, 4.4}; |
| assert(std::get<0>(array) == 3.3); |
| assert(std::get<1>(array) == 4.4); |
| std::get<0>(array) = 99.1; |
| std::get<1>(array) = 99.2; |
| assert(std::get<0>(array) == 99.1); |
| assert(std::get<1>(array) == 99.2); |
| } |
| { |
| std::array<double, 3> array = {3.3, 4.4, 5.5}; |
| assert(std::get<0>(array) == 3.3); |
| assert(std::get<1>(array) == 4.4); |
| assert(std::get<2>(array) == 5.5); |
| std::get<1>(array) = 99.2; |
| assert(std::get<0>(array) == 3.3); |
| assert(std::get<1>(array) == 99.2); |
| assert(std::get<2>(array) == 5.5); |
| } |
| { |
| std::array<double, 1> array = {3.3}; |
| static_assert(std::is_same<double&, decltype(std::get<0>(array))>::value, ""); |
| } |
| { |
| assert(std::get<0>(tempArray(1, 2, 3)) == 1); |
| assert(std::get<1>(tempArray(1, 2, 3)) == 2); |
| assert(std::get<2>(tempArray(1, 2, 3)) == 3); |
| } |
| |
| return true; |
| } |
| |
| int main(int, char**) |
| { |
| tests(); |
| #if TEST_STD_VER >= 14 |
| static_assert(tests(), ""); |
| #endif |
| return 0; |
| } |