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 // class std::ranges::subrange; 13 14 #include <ranges> 15 16 #include "types.h" 17 #include <cassert> 18 #include "test_macros.h" 19 #include "test_iterators.h" 20 #include <tuple> 21 #include <utility> 22 23 static_assert( std::is_convertible_v<ForwardSubrange, std::pair<ForwardIter, ForwardIter>>); 24 static_assert( std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter>>); 25 static_assert(!std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter>&>); 26 static_assert(!std::is_convertible_v<ForwardSubrange, std::tuple<ForwardIter, ForwardIter, ForwardIter>>); 27 static_assert( std::is_convertible_v<ConvertibleForwardSubrange, std::tuple<ConvertibleForwardIter, int*>>); 28 static_assert(!std::is_convertible_v<SizedIntPtrSubrange, std::tuple<long*, int*>>); 29 static_assert( std::is_convertible_v<SizedIntPtrSubrange, std::tuple<int*, int*>>); 30 31 constexpr bool test() { 32 ForwardSubrange a(ForwardIter(globalBuff), ForwardIter(globalBuff + 8)); 33 std::pair<ForwardIter, ForwardIter> aPair = a; 34 assert(base(aPair.first) == globalBuff); 35 assert(base(aPair.second) == globalBuff + 8); 36 std::tuple<ForwardIter, ForwardIter> aTuple = a; 37 assert(base(std::get<0>(aTuple)) == globalBuff); 38 assert(base(std::get<1>(aTuple)) == globalBuff + 8); 39 40 return true; 41 } 42 43 int main(int, char**) { 44 test(); 45 static_assert(test()); 46 47 return 0; 48 } 49