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-has-no-incomplete-ranges 11 12 // template<class R> 13 // concept input_range; 14 15 #include <ranges> 16 17 #include "test_iterators.h" 18 #include "test_range.h" 19 20 static_assert(std::ranges::input_range<test_range<cpp17_input_iterator> >); 21 static_assert(std::ranges::input_range<test_range<cpp17_input_iterator> const>); 22 23 static_assert(std::ranges::input_range<test_range<cpp20_input_iterator> >); 24 static_assert(std::ranges::input_range<test_range<cpp20_input_iterator> const>); 25 26 static_assert(std::ranges::input_range<test_non_const_range<cpp17_input_iterator> >); 27 static_assert(std::ranges::input_range<test_non_const_range<cpp20_input_iterator> >); 28 29 static_assert(!std::ranges::input_range<test_non_const_range<cpp17_input_iterator> const>); 30 static_assert(!std::ranges::input_range<test_non_const_range<cpp20_input_iterator> const>); 31 32 static_assert(std::ranges::input_range<test_common_range<forward_iterator> >); 33 static_assert(!std::ranges::input_range<test_common_range<cpp20_input_iterator> >); 34 35 static_assert(std::ranges::input_range<test_common_range<forward_iterator> const>); 36 static_assert(!std::ranges::input_range<test_common_range<cpp20_input_iterator> const>); 37 38 static_assert(std::ranges::input_range<test_non_const_common_range<forward_iterator> >); 39 static_assert(!std::ranges::input_range<test_non_const_common_range<cpp20_input_iterator> >); 40 41 static_assert(!std::ranges::input_range<test_non_const_common_range<forward_iterator> const>); 42 static_assert(!std::ranges::input_range<test_non_const_common_range<cpp20_input_iterator> const>); 43 44 // Test ADL-proofing. 45 struct Incomplete; 46 template<class T> struct Holder { T t; }; 47 48 static_assert(!std::ranges::input_range<Holder<Incomplete>*>); 49 static_assert(!std::ranges::input_range<Holder<Incomplete>*&>); 50 static_assert(!std::ranges::input_range<Holder<Incomplete>*&&>); 51 static_assert(!std::ranges::input_range<Holder<Incomplete>* const>); 52 static_assert(!std::ranges::input_range<Holder<Incomplete>* const&>); 53 static_assert(!std::ranges::input_range<Holder<Incomplete>* const&&>); 54 55 static_assert( std::ranges::input_range<Holder<Incomplete>*[10]>); 56 static_assert( std::ranges::input_range<Holder<Incomplete>*(&)[10]>); 57 static_assert( std::ranges::input_range<Holder<Incomplete>*(&&)[10]>); 58 static_assert( std::ranges::input_range<Holder<Incomplete>* const[10]>); 59 static_assert( std::ranges::input_range<Holder<Incomplete>* const(&)[10]>); 60 static_assert( std::ranges::input_range<Holder<Incomplete>* const(&&)[10]>); 61