| //===---------------------------------------------------------------------===// |
| // |
| // 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 |
| // UNSUPPORTED: libcpp-has-no-incomplete-ranges |
| |
| // AppleClang 12.0.0 doesn't fully support ranges/concepts |
| // XFAIL: apple-clang-12.0.0 |
| |
| // <span> |
| |
| // template <class It> |
| // constexpr explicit(Extent != dynamic_extent) span(It first, size_type count); |
| // If Extent is not equal to dynamic_extent, then count shall be equal to Extent. |
| // |
| |
| #include <span> |
| #include <cstddef> |
| |
| template <class T, size_t extent> |
| std::span<T, extent> createImplicitSpan(T* ptr, size_t len) { |
| return {ptr, len}; // expected-error {{chosen constructor is explicit in copy-initialization}} |
| } |
| |
| int main(int, char**) { |
| // explicit constructor necessary |
| int arr[] = {1, 2, 3}; |
| createImplicitSpan<int, 1>(arr, 3); |
| |
| std::span<const int> sp = {0, 0}; // expected-error {{no matching constructor for initialization of 'std::span<const int>'}} |
| |
| return 0; |
| } |
