id summary reporter owner description type status milestone component version severity resolution keywords cc 10268 Error message in basic_regex_parser.hpp Michael Molsner John Maddock "Hello, The following line should probably read ""cannot"" instead of ""can"": fail(regex_constants::error_empty, this->m_position - this->m_base, ""A regular expression can start with the alternation operator |.""); Cheers" Bugs closed To Be Determined regex Boost 1.54.0 Cosmetic fixed regex, parser