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 // UNSUPPORTED: no-exceptions 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 #include "test_macros.h" 20 error_escape_thrown(const char * pat)21static bool error_escape_thrown(const char *pat) 22 { 23 bool result = false; 24 try { 25 std::regex re(pat); 26 } catch (const std::regex_error &ex) { 27 result = (ex.code() == std::regex_constants::error_escape); 28 } 29 return result; 30 } 31 main(int,char **)32int main(int, char**) 33 { 34 assert(error_escape_thrown("[\\a]")); 35 assert(error_escape_thrown("\\a")); 36 assert(error_escape_thrown("\\")); 37 38 assert(error_escape_thrown("[\\e]")); 39 assert(error_escape_thrown("\\e")); 40 41 assert(error_escape_thrown("[\\c:]")); 42 assert(error_escape_thrown("\\c:")); 43 assert(error_escape_thrown("\\c")); 44 assert(!error_escape_thrown("[\\cA]")); 45 assert(!error_escape_thrown("\\cA")); 46 47 48 return 0; 49 } 50