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// template <class BidirectionalIterator> class sub_match;
12
13// template <class charT, class ST, class BiIter>
14// basic_ostream<charT, ST>&
15// operator<<(basic_ostream<charT, ST>& os, const sub_match<BiIter>& m);
16
17#include <regex>
18#include <sstream>
19#include <cassert>
20#include "test_macros.h"
21
22template <class CharT>
23void
24test(const std::basic_string<CharT>& s)
25{
26 typedef std::basic_string<CharT> string;
27 typedef std::sub_match<typename string::const_iterator> SM;
28 typedef std::basic_ostringstream<CharT> ostringstream;
29 SM sm;
30 sm.first = s.begin();
31 sm.second = s.end();
32 sm.matched = true;
33 ostringstream os;
34 os << sm;
35 assert(os.str() == s);
36}
37
38int main(int, char**)
39{
40 test(std::string("123"));
41#ifndef TEST_HAS_NO_WIDE_CHARACTERS
42 test(std::wstring(L"123"));
43#endif
44
45 return 0;
46}
47

source code of libcxx/test/std/re/re.submatch/re.submatch.op/stream.pass.cpp