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<class T>
15 // using iterator_t = decltype(ranges::begin(declval<T&>()));
16 
17 #include <ranges>
18 
19 #include <concepts>
20 
21 #include "test_range.h"
22 
23 namespace stdr = std::ranges;
24 
25 static_assert(std::same_as<stdr::iterator_t<test_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
26 static_assert(std::same_as<stdr::iterator_t<test_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >);
27 
28 static_assert(std::same_as<stdr::iterator_t<test_non_const_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
29 
30 static_assert(std::same_as<stdr::iterator_t<test_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
31 static_assert(std::same_as<stdr::iterator_t<test_common_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >);
32 
33 static_assert(std::same_as<stdr::iterator_t<test_non_const_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >);
34