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 // UNSUPPORTED: libcpp-no-concepts 11 // UNSUPPORTED: libcpp-has-no-incomplete-ranges 12 13 // Test that single_view conforms to range and view concepts. 14 15 #include <ranges> 16 17 #include <cassert> 18 #include <concepts> 19 20 #include "test_iterators.h" 21 22 struct Empty {}; 23 24 static_assert(std::ranges::contiguous_range<std::ranges::single_view<Empty>>); 25 static_assert(std::ranges::contiguous_range<const std::ranges::single_view<Empty>>); 26 static_assert(std::ranges::view<std::ranges::single_view<Empty>>); 27 static_assert(std::ranges::view<std::ranges::single_view<const Empty>>); 28 static_assert(std::ranges::contiguous_range<const std::ranges::single_view<const Empty>>); 29 static_assert(std::ranges::view<std::ranges::single_view<int>>); 30 static_assert(std::ranges::view<std::ranges::single_view<const int>>); 31 static_assert(std::ranges::contiguous_range<const std::ranges::single_view<const int>>); 32