| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // REQUIRES: has-unix-headers |
| // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 |
| // UNSUPPORTED: libcpp-hardening-mode=none |
| // XFAIL: availability-verbose_abort-missing |
| |
| // <mdspan> |
| |
| |
| // constexpr mapping(const extents_type& e) noexcept; |
| // |
| // Preconditions: The size of the multidimensional index space e is representable as a value of type index_type ([basic.fundamental]). |
| // |
| // Effects: Direct-non-list-initializes extents_ with e. |
| |
| #include <mdspan> |
| #include <cassert> |
| |
| #include "check_assertion.h" |
| |
| int main(int, char**) { |
| constexpr size_t D = std::dynamic_extent; |
| |
| // value out of range |
| { |
| // the extents are representable but the product is not, so we can't use it for layout_left |
| TEST_LIBCPP_ASSERT_FAILURE( |
| ([=] { std::layout_left::template mapping<std::extents<char, D, 5>> m(std::extents<char, D, 5>(100)); }()), |
| "layout_left::mapping extents ctor: product of extents must be representable as index_type."); |
| } |
| return 0; |
| } |
