1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <regex> 11 12 // template <class charT, class traits = regex_traits<charT>> class basic_regex; 13 14 // template <class ST, class SA> 15 // basic_regex(const basic_string<charT, ST, SA>& s); 16 17 #include <regex> 18 #include <cassert> 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("\1411", std::regex{"\\1411", awk})); 28 } 29
