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: gcc-10
12 // UNSUPPORTED: libcpp-has-no-incomplete-ranges
13 
14 // template<range R>
15 // using range_difference_t = iter_difference_t<iterator_t<R>>;
16 
17 // template<range R>
18 // using range_value_t = iter_value_t<iterator_t<R>>;
19 
20 // template<range R>
21 // using range_reference_t = iter_reference_t<iterator_t<R>>;
22 
23 // template<range R>
24 // using range_rvalue_reference_t = iter_rvalue_reference_t<iterator_t<R>>;
25 
26 #include <ranges>
27 
28 #include <concepts>
29 
30 #include "test_iterators.h"
31 #include "test_range.h"
32 
33 namespace stdr = std::ranges;
34 
35 static_assert(std::same_as<stdr::range_difference_t<test_range<cpp20_input_iterator> >, std::iter_difference_t<int*> >);
36 static_assert(std::same_as<stdr::range_value_t<test_range<cpp20_input_iterator> >, std::iter_value_t<int*> >);
37 static_assert(std::same_as<stdr::range_reference_t<test_range<cpp20_input_iterator> >, std::iter_reference_t<int*> >);
38 static_assert(std::same_as<stdr::range_rvalue_reference_t<test_range<cpp20_input_iterator> >, std::iter_rvalue_reference_t<int*> >);
39