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, c++20 10 11 // template<class T, class Bound> 12 // repeat_view(T, Bound) -> repeat_view<T, Bound>; 13 14 #include <concepts> 15 #include <ranges> 16 #include <utility> 17 18 struct Empty {}; 19 20 // clang-format off 21 static_assert(std::same_as<decltype(std::ranges::repeat_view(Empty())), std::ranges::repeat_view<Empty>>); 22 static_assert(std::same_as<decltype(std::ranges::repeat_view(std::declval<Empty&>())), std::ranges::repeat_view<Empty>>); 23 static_assert(std::same_as<decltype(std::ranges::repeat_view(std::declval<Empty&&>())), std::ranges::repeat_view<Empty>>); 24 static_assert(std::same_as<decltype(std::ranges::repeat_view(10, 1)), std::ranges::repeat_view<int, int>>); 25 static_assert(std::same_as<decltype(std::ranges::repeat_view(10, 1U)), std::ranges::repeat_view<int, unsigned>>); 26 static_assert(std::same_as<decltype(std::ranges::repeat_view(10, 1UL)), std::ranges::repeat_view<int, unsigned long>>); 27 28 using RPV = std::ranges::repeat_view<const char*>; 29 static_assert(std::same_as<decltype(std::ranges::repeat_view("foo", std::unreachable_sentinel)), RPV>); // OK 30 static_assert(std::same_as<decltype(std::ranges::repeat_view(+"foo", std::unreachable_sentinel)), RPV>); // OK 31 static_assert(std::same_as<decltype(std::ranges::repeat_view("foo")), RPV>); // OK since LWG4053 32 static_assert(std::same_as<decltype(std::ranges::repeat_view(+"foo")), RPV>); // OK 33 // clang-format on 34