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