text: //===----------------------------------------------------------------------===//
  //
  // 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
  
  // template<class T>
  //   single_view(T) -> single_view<T>;
  
  #include <ranges>
  
  #include <cassert>
  #include <concepts>
  
  #include "test_iterators.h"
  
  struct Empty {};
  
  static_assert(std::same_as<
    decltype(std::ranges::single_view(Empty())),
    std::ranges::single_view<Empty>
  >);
  
  static_assert(std::same_as<
    decltype(std::ranges::single_view(std::declval<Empty&>())),
    std::ranges::single_view<Empty>
  >);
  
  static_assert(std::same_as<
    decltype(std::ranges::single_view(std::declval<Empty&&>())),
    std::ranges::single_view<Empty>
  >);
  