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//===----------------------------------------------------------------------===//
//
// 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;
}
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