mirror of
https://github.com/boostorg/compat.git
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d2d5cbe094
* Added to_array * Suppress unused warnings * Fix unused warnings (2) * Workaround msvc 14.0 bug * Workaround MSVC problems with moving arrays * MSVC workaround in constexpr test * Further MSVC fixes * Disable rvalue tests for MSVC 14.0 * Incorrect argument spec * constexpr checks * const test * Disable rvalues for msvc 14.1 * Docs * Added more const tests * Correct static_asserts * Update type requirements in docs * Corrected return types and conditions * Doc updates
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
// Copyright 2024 Ruben Perez Hidalgo.
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/compat/to_array.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <array>
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#include <vector>
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namespace compat = boost::compat;
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int main()
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{
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{
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// regular C array
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int input[] = {1, 2};
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auto output = compat::to_array(input);
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static_assert(std::is_same<decltype(output), std::array<int, 2>>::value, "");
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BOOST_TEST_EQ(output[0], 1);
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BOOST_TEST_EQ(output[1], 2);
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}
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{
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// regular C array, const
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const int input[] = {1, 2};
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auto output = compat::to_array(input);
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static_assert(std::is_same<decltype(output), std::array<int, 2>>::value, "");
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BOOST_TEST_EQ(output[0], 1);
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BOOST_TEST_EQ(output[1], 2);
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}
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{
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// values not moved
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const std::vector<int> vec{1, 2};
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std::vector<int> input[]{vec};
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auto output = compat::to_array(input);
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static_assert(std::is_same<decltype(output), std::array<std::vector<int>, 1>>::value, "");
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BOOST_TEST_ALL_EQ(output[0].begin(), output[0].end(), vec.begin(), vec.end());
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BOOST_TEST_ALL_EQ(input[0].begin(), input[0].end(), vec.begin(), vec.end()); // input not modified
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}
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{
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// const values work
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const std::vector<int> vec{1, 2};
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const std::vector<int> input[]{vec};
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auto output = compat::to_array(input);
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static_assert(std::is_same<decltype(output), std::array<std::vector<int>, 1>>::value, "");
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BOOST_TEST_ALL_EQ(output[0].begin(), output[0].end(), vec.begin(), vec.end());
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BOOST_TEST_ALL_EQ(input[0].begin(), input[0].end(), vec.begin(), vec.end()); // input not modified
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}
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{
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// constexpr check
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constexpr int input[] = {1, 2, 3};
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constexpr auto output = compat::to_array(input);
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static_assert(std::is_same<decltype(output), const std::array<int, 3>>::value, "");
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BOOST_TEST_EQ(output[0], 1);
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BOOST_TEST_EQ(output[1], 2);
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BOOST_TEST_EQ(output[2], 3);
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}
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return boost::report_errors();
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}
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