31 lines · cpp
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-exception6//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