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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <span>
// tuple_element<I, span<T, N> >::type
#include <span>
#include "test_macros.h"
template <class T, std::size_t N, std::size_t Idx>
void test()
{
{
typedef std::span<T, N> C;
ASSERT_SAME_TYPE(typename std::tuple_element<Idx, C>::type, T);
}
{
typedef std::span<T const, N> C;
ASSERT_SAME_TYPE(typename std::tuple_element<Idx, C>::type, T const);
}
{
typedef std::span<T volatile, N> C;
ASSERT_SAME_TYPE(typename std::tuple_element<Idx, C>::type, T volatile);
}
{
typedef std::span<T const volatile, N> C;
ASSERT_SAME_TYPE(typename std::tuple_element<Idx, C>::type, T const volatile);
}
}
int main(int, char**)
{
test<double, 3, 0>();
test<double, 3, 1>();
test<double, 3, 2>();
test<int, 5, 0>();
test<int, 5, 1>();
test<int, 5, 2>();
test<int, 5, 3>();
test<int, 5, 4>();
return 0;
}
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