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 // UNSUPPORTED: libcpp-no-exceptions 11 // <regex> 12 13 // template <class charT, class traits = regex_traits<charT>> class basic_regex; 14 15 // template <class ST, class SA> 16 // basic_regex(const basic_string<charT, ST, SA>& s); 17 18 #include <regex> 19 #include <cassert> 20 #include "test_macros.h" 21 22 static bool error_escape_thrown(const char *pat) 23 { 24 bool result = false; 25 try { 26 std::regex re(pat); 27 } catch (const std::regex_error &ex) { 28 result = (ex.code() == std::regex_constants::error_escape); 29 } 30 return result; 31 } 32 33 int main() 34 { 35 assert(error_escape_thrown("[\\a]")); 36 assert(error_escape_thrown("\\a")); 37 assert(error_escape_thrown("\\")); 38 39 assert(error_escape_thrown("[\\e]")); 40 assert(error_escape_thrown("\\e")); 41 42 assert(error_escape_thrown("[\\c:]")); 43 assert(error_escape_thrown("\\c:")); 44 assert(error_escape_thrown("\\c")); 45 assert(!error_escape_thrown("[\\cA]")); 46 assert(!error_escape_thrown("\\cA")); 47 48 } 49
