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: libcpp-has-no-incomplete-ranges 12 13 // template<class R> 14 // concept input_range; 15 16 #include <ranges> 17 18 #include "test_iterators.h" 19 #include "test_range.h" 20 21 static_assert(std::ranges::input_range<test_range<cpp17_input_iterator> >); 22 static_assert(std::ranges::input_range<test_range<cpp17_input_iterator> const>); 23 24 static_assert(std::ranges::input_range<test_range<cpp20_input_iterator> >); 25 static_assert(std::ranges::input_range<test_range<cpp20_input_iterator> const>); 26 27 static_assert(std::ranges::input_range<test_non_const_range<cpp17_input_iterator> >); 28 static_assert(std::ranges::input_range<test_non_const_range<cpp20_input_iterator> >); 29 30 static_assert(!std::ranges::input_range<test_non_const_range<cpp17_input_iterator> const>); 31 static_assert(!std::ranges::input_range<test_non_const_range<cpp20_input_iterator> const>); 32 33 static_assert(std::ranges::input_range<test_common_range<forward_iterator> >); 34 static_assert(!std::ranges::input_range<test_common_range<cpp20_input_iterator> >); 35 36 static_assert(std::ranges::input_range<test_common_range<forward_iterator> const>); 37 static_assert(!std::ranges::input_range<test_common_range<cpp20_input_iterator> const>); 38 39 static_assert(std::ranges::input_range<test_non_const_common_range<forward_iterator> >); 40 static_assert(!std::ranges::input_range<test_non_const_common_range<cpp20_input_iterator> >); 41 42 static_assert(!std::ranges::input_range<test_non_const_common_range<forward_iterator> const>); 43 static_assert(!std::ranges::input_range<test_non_const_common_range<cpp20_input_iterator> const>); 44 45 // Test ADL-proofing. 46 struct Incomplete; 47 template<class T> struct Holder { T t; }; 48 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>*&&>); 52 static_assert(!std::ranges::input_range<Holder<Incomplete>* const>); 53 static_assert(!std::ranges::input_range<Holder<Incomplete>* const&>); 54 static_assert(!std::ranges::input_range<Holder<Incomplete>* const&&>); 55 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>*(&&)[10]>); 59 static_assert( std::ranges::input_range<Holder<Incomplete>* const[10]>); 60 static_assert( std::ranges::input_range<Holder<Incomplete>* const(&)[10]>); 61 static_assert( std::ranges::input_range<Holder<Incomplete>* const(&&)[10]>); 62