| //===----------------------------------------------------------------------===// |
| // |
| // 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++03, c++11, c++14, c++17 |
| |
| // <span> |
| |
| #include <span> |
| #include <cassert> |
| #include <cstddef> |
| |
| struct Sink { |
| constexpr Sink() = default; |
| constexpr Sink(Sink*) {} |
| }; |
| |
| constexpr std::size_t count(std::span<const Sink> sp) { |
| return sp.size(); |
| } |
| |
| template<int N> |
| constexpr std::size_t countn(std::span<const Sink, N> sp) { |
| return sp.size(); |
| } |
| |
| constexpr bool test() { |
| Sink a[10]; |
| assert(count({a}) == 10); |
| assert(count({a, a+10}) == 10); |
| assert(countn<10>({a}) == 10); |
| return true; |
| } |
| |
| int main(int, char**) { |
| test(); |
| static_assert(test()); |
| |
| return 0; |
| } |