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 13 // template<class T> 14 // using iterator_t = decltype(ranges::begin(declval<T&>())); 15 16 #include <ranges> 17 18 #include <concepts> 19 20 #include "test_range.h" 21 22 namespace stdr = std::ranges; 23 24 static_assert(std::same_as<stdr::iterator_t<test_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >); 25 static_assert(std::same_as<stdr::iterator_t<test_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >); 26 27 static_assert(std::same_as<stdr::iterator_t<test_non_const_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >); 28 29 static_assert(std::same_as<stdr::iterator_t<test_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >); 30 static_assert(std::same_as<stdr::iterator_t<test_common_range<cpp17_input_iterator> const>, cpp17_input_iterator<int const*> >); 31 32 static_assert(std::same_as<stdr::iterator_t<test_non_const_common_range<cpp17_input_iterator> >, cpp17_input_iterator<int*> >); 33