| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| |
| // template<size_t Count> |
| // constexpr span<element_type, Count> first() const; |
| // |
| // Mandates: Count <= Extent is true. |
| |
| #include <span> |
| #include <cstddef> |
| |
| void f() { |
| int array[] = {1, 2, 3, 4}; |
| std::span<const int, 4> sp(array); |
| |
| // Count too large |
| [[maybe_unused]] auto s1 = sp.first<5>(); // expected-error@span:* {{span<T, N>::first<Count>(): Count out of range}} |
| |
| // Count numeric_limits |
| [[maybe_unused]] auto s2 = sp.first<std::size_t(-1)>(); // expected-error@span:* {{span<T, N>::first<Count>(): Count out of range}} |
| } |
