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 10 11 // template<class T> 12 // single_view(T) -> single_view<T>; 13 14 #include <ranges> 15 16 #include <cassert> 17 #include <concepts> 18 19 #include "test_iterators.h" 20 21 struct Empty {}; 22 23 static_assert(std::same_as< 24 decltype(std::ranges::single_view(Empty())), 25 std::ranges::single_view<Empty> 26 >); 27 28 static_assert(std::same_as< 29 decltype(std::ranges::single_view(std::declval<Empty&>())), 30 std::ranges::single_view<Empty> 31 >); 32 33 static_assert(std::same_as< 34 decltype(std::ranges::single_view(std::declval<Empty&&>())), 35 std::ranges::single_view<Empty> 36 >); 37