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// Copyright 2024 Ruben Perez Hidalgo.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/compat/to_array.hpp>
#include <boost/core/lightweight_test.hpp>
#include <array>
#include <vector>
namespace compat = boost::compat;
int main()
{
{
// regular C array
int input[] = {1, 2};
auto output = compat::to_array(input);
static_assert(std::is_same<decltype(output), std::array<int, 2>>::value, "");
BOOST_TEST_EQ(output[0], 1);
BOOST_TEST_EQ(output[1], 2);
}
{
// regular C array, const
const int input[] = {1, 2};
auto output = compat::to_array(input);
static_assert(std::is_same<decltype(output), std::array<int, 2>>::value, "");
BOOST_TEST_EQ(output[0], 1);
BOOST_TEST_EQ(output[1], 2);
}
{
// values not moved
const std::vector<int> vec{1, 2};
std::vector<int> input[]{vec};
auto output = compat::to_array(input);
static_assert(std::is_same<decltype(output), std::array<std::vector<int>, 1>>::value, "");
BOOST_TEST_ALL_EQ(output[0].begin(), output[0].end(), vec.begin(), vec.end());
BOOST_TEST_ALL_EQ(input[0].begin(), input[0].end(), vec.begin(), vec.end()); // input not modified
}
{
// const values work
const std::vector<int> vec{1, 2};
const std::vector<int> input[]{vec};
auto output = compat::to_array(input);
static_assert(std::is_same<decltype(output), std::array<std::vector<int>, 1>>::value, "");
BOOST_TEST_ALL_EQ(output[0].begin(), output[0].end(), vec.begin(), vec.end());
BOOST_TEST_ALL_EQ(input[0].begin(), input[0].end(), vec.begin(), vec.end()); // input not modified
}
{
// constexpr check
constexpr int input[] = {1, 2, 3};
constexpr auto output = compat::to_array(input);
static_assert(std::is_same<decltype(output), const std::array<int, 3>>::value, "");
BOOST_TEST_EQ(output[0], 1);
BOOST_TEST_EQ(output[1], 2);
BOOST_TEST_EQ(output[2], 3);
}
return boost::report_errors();
}
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