| //===----------------------------------------------------------------------===// |
| // |
| // 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_size<span<T, N> >::value |
| |
| #include <span> |
| |
| #include "test_macros.h" |
| |
| template <class T, std::size_t N> |
| void test() |
| { |
| { |
| typedef std::span<T, N> C; |
| static_assert((std::tuple_size<C>::value == N), ""); |
| } |
| { |
| typedef std::span<T const, N> C; |
| static_assert((std::tuple_size<C>::value == N), ""); |
| } |
| { |
| typedef std::span<T volatile, N> C; |
| static_assert((std::tuple_size<C>::value == N), ""); |
| } |
| { |
| typedef std::span<T const volatile, N> C; |
| static_assert((std::tuple_size<C>::value == N), ""); |
| } |
| } |
| |
| int main(int, char**) |
| { |
| test<double, 0>(); |
| test<double, 3>(); |
| test<double, 5>(); |
| |
| return 0; |
| } |