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
main(int,char **)20 int 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