id summary reporter owner description type status milestone component version severity resolution keywords cc 1035 regex_error exception when quantifying some non-capturing groups Eric Niebler Eric Niebler " sregex expression2 = sregex::compile( /* 1 */ ""^("" /* 2 */ ""c[^\r\n]*(?:\r?\n|\r)"" /* 3 */ ""(?:"" /* 4 */ ""(?!c)"" /* 5 */ ""[^\r\n]*(?:\r?\n|\r)"" /* 6 */ "")*"" /* 7 */ "")"" ); " Bugs closed Boost 1.34.1 xpressive Boost 1.34.0 Problem fixed