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 11 // template<class T> 12 // concept sized_range; 13 14 #include <ranges> 15 16 #include "test_iterators.h" 17 18 19 20 static_assert(std::ranges::sized_range<int[5]>); 21 static_assert(std::ranges::sized_range<int (&)[5]>); 22 static_assert(!std::ranges::sized_range<int (&)[]>); 23 static_assert(!std::ranges::sized_range<int[]>); 24 25 struct range_has_size { 26 bidirectional_iterator<int*> begin(); 27 bidirectional_iterator<int*> end(); 28 int size(); 29 }; 30 static_assert(std::ranges::sized_range<range_has_size>); 31 static_assert(!std::ranges::sized_range<range_has_size const>); 32 33 struct range_has_const_size { 34 bidirectional_iterator<int*> begin(); 35 bidirectional_iterator<int*> end(); 36 int size() const; 37 }; 38 static_assert(std::ranges::sized_range<range_has_const_size>); 39 static_assert(!std::ranges::sized_range<range_has_const_size const>); 40 41 struct const_range_has_size { 42 bidirectional_iterator<int*> begin() const; 43 bidirectional_iterator<int*> end() const; 44 int size(); 45 }; 46 static_assert(std::ranges::sized_range<const_range_has_size>); 47 static_assert(std::ranges::range<const_range_has_size const>); 48 static_assert(!std::ranges::sized_range<const_range_has_size const>); 49 50 struct const_range_has_const_size { 51 bidirectional_iterator<int*> begin() const; 52 bidirectional_iterator<int*> end() const; 53 int size() const; 54 }; 55 static_assert(std::ranges::sized_range<const_range_has_const_size>); 56 static_assert(std::ranges::sized_range<const_range_has_const_size const>); 57 58 struct sized_sentinel_range_has_size { 59 int* begin(); 60 int* end(); 61 }; 62 static_assert(std::ranges::sized_range<sized_sentinel_range_has_size>); 63 static_assert(!std::ranges::sized_range<sized_sentinel_range_has_size const>); 64 65 struct const_sized_sentinel_range_has_size { 66 int* begin() const; 67 int* end() const; 68 }; 69 static_assert(std::ranges::sized_range<const_sized_sentinel_range_has_size>); 70 static_assert(std::ranges::sized_range<const_sized_sentinel_range_has_size const>); 71 72 struct non_range_has_size { 73 int size() const; 74 }; 75 static_assert(requires(non_range_has_size const x) { std::ranges::size(x); }); 76 static_assert(!std::ranges::sized_range<non_range_has_size>); 77 static_assert(!std::ranges::sized_range<non_range_has_size const>); 78