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-no-concepts
  // UNSUPPORTED: libcpp-has-no-incomplete-ranges
  
  // template<class T>
  // using iterator_t = decltype(ranges::begin(declval<T&>()));
  
  #include <ranges>
  
  #include <concepts>
  
  #include "test_range.h"
  
  
  
  static_assert(std::same_as<std::ranges::iterator_t<test_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
  static_assert(std::same_as<std::ranges::iterator_t<test_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >);
  
  static_assert(std::same_as<std::ranges::iterator_t<test_non_const_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
  
  static_assert(std::same_as<std::ranges::iterator_t<test_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
  static_assert(std::same_as<std::ranges::iterator_t<test_common_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >);
  
  static_assert(std::same_as<std::ranges::iterator_t<test_non_const_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
  