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 charT, class traits = regex_traits<charT>> class basic_regex;
12
13// template <class ST, class SA>
14// basic_regex(const basic_string<charT, ST, SA>& s);
15
16#include <regex>
17#include <cassert>
18#include "test_macros.h"
19
20int main(int, char**)
21{
22 using std::regex_constants::awk;
23
24 assert(std::regex_match("\4", std::regex("\\4", awk)));
25 assert(std::regex_match("\41", std::regex("\\41", awk)));
26 assert(std::regex_match("\141", std::regex("\\141", awk)));
27 assert(std::regex_match("\141" "1", std::regex("\\1411", awk)));
28
29 return 0;
30}
31

source code of libcxx/test/std/re/re.regex/re.regex.construct/awk_oct.pass.cpp