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 20 int main() 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