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// <regex>
10
11// class match_results<BidirectionalIterator, Allocator>
12
13// match_results& operator=(const match_results& m);
14
15#include <regex>
16#include <cassert>
17#include "test_macros.h"
18#include "test_allocator.h"
19
20template <class CharT, class Allocator>
21void
22test(const Allocator& a)
23{
24 typedef std::match_results<const CharT*, Allocator> SM;
25 SM m0(a);
26 SM m1;
27
28 m1 = m0;
29 assert(m1.size() == m0.size());
30 assert(m1.ready() == m0.ready());
31 if (std::allocator_traits<Allocator>::propagate_on_container_copy_assignment::value)
32 assert(m1.get_allocator() == m0.get_allocator());
33 else
34 assert(m1.get_allocator() == Allocator());
35}
36
37int main(int, char**)
38{
39 test<char> (a: std::allocator<std::sub_match<const char *> >());
40#ifndef TEST_HAS_NO_WIDE_CHARACTERS
41 test<wchar_t>(a: std::allocator<std::sub_match<const wchar_t *> >());
42#endif
43
44 // test_allocator has POCCA -> false
45 test<char> (test_allocator<std::sub_match<const char*> >(3));
46#ifndef TEST_HAS_NO_WIDE_CHARACTERS
47 test<wchar_t>(test_allocator<std::sub_match<const wchar_t*> >(3));
48#endif
49
50 // other_allocator has POCCA -> true
51 test<char> (other_allocator<std::sub_match<const char*> >(3));
52#ifndef TEST_HAS_NO_WIDE_CHARACTERS
53 test<wchar_t>(other_allocator<std::sub_match<const wchar_t*> >(3));
54#endif
55
56 return 0;
57}
58

source code of libcxx/test/std/re/re.results/re.results.const/copy_assign.pass.cpp