| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <regex> |
| |
| // class match_results<BidirectionalIterator, Allocator> |
| |
| // explicit match_results(const Allocator& a = Allocator()); // before C++20 |
| // match_results() : match_results(Allocator()) {} // C++20 |
| // explicit match_results(const Allocator& a); // C++20 |
| |
| #include <regex> |
| #include <cassert> |
| #include "test_macros.h" |
| #if TEST_STD_VER >= 11 |
| #include "test_convertible.h" |
| |
| template <typename T> |
| void test_implicit() { |
| static_assert(test_convertible<T>(), ""); |
| static_assert(!test_convertible<T, typename T::allocator_type>(), ""); |
| } |
| #endif |
| |
| template <class CharT> |
| void |
| test() |
| { |
| typedef std::match_results<const CharT*> M; |
| typedef std::allocator<std::sub_match<const CharT*> > Alloc; |
| M m; |
| assert(m.size() == 0); |
| assert(!m.ready()); |
| assert(m.get_allocator() == Alloc()); |
| |
| #if TEST_STD_VER >= 11 |
| test_implicit<M>(); |
| #endif |
| } |
| |
| int main(int, char**) |
| { |
| test<char>(); |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| test<wchar_t>(); |
| #endif |
| |
| return 0; |
| } |