1 // Copyright (C) 2019-2020 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 3, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING3. If not see 16 // <http://www.gnu.org/licenses/>. 17 18 // { dg-options "-std=gnu++2a" } 19 // { dg-do compile { target c++2a } } 20 21 #include <ranges> 22 #include <testsuite_iterators.h> 23 24 static_assert( std::ranges::borrowed_range<int(&)[1]> ); 25 static_assert( std::ranges::borrowed_range<const int(&)[1]> ); 26 static_assert( !std::ranges::borrowed_range<int[1]> ); 27 static_assert( !std::ranges::borrowed_range<int*> ); 28 29 using __gnu_test::test_contiguous_range; 30 31 static_assert( !std::ranges::borrowed_range<test_contiguous_range<int>> ); 32 static_assert( std::ranges::borrowed_range<test_contiguous_range<int>&> ); 33 static_assert( !std::ranges::borrowed_range<test_contiguous_range<int>&&> ); 34 35 template<> 36 constexpr bool 37 std::ranges::enable_borrowed_range<test_contiguous_range<long>> = true; 38 39 static_assert( std::ranges::borrowed_range<test_contiguous_range<long>> ); 40 static_assert( std::ranges::borrowed_range<test_contiguous_range<long>&> ); 41 static_assert( std::ranges::borrowed_range<test_contiguous_range<long>&&> ); 42