1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 
11 // <span>
12 
13 // template<class ElementType, size_t Extent>
14 // inline constexpr bool ranges::enable_borrowed_range<
15 //     span<ElementType, Extent>> = true;
16 
17 #include <span>
18 
19 #include "test_macros.h"
20 
21 void test() {
22   static_assert(std::ranges::enable_borrowed_range<std::span<int, 0> >);
23   static_assert(std::ranges::enable_borrowed_range<std::span<int, 42> >);
24   static_assert(std::ranges::enable_borrowed_range<std::span<int, std::dynamic_extent> >);
25   static_assert(!std::ranges::enable_borrowed_range<std::span<int, 42>&>);
26   static_assert(!std::ranges::enable_borrowed_range<std::span<int, 42> const>);
27 }
28