id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 4708,regex::sub_match::length(),robin.snyder@…,John Maddock,"code does not match documentation. if matched==false length() does not return 0, instead it results in an assertion of ""string iterators incompatible"" docs state: {{{ static difference_type length(); Effects: returns the length of this matched sub-expression, or 0 if this sub-expression was not matched: matched ? distance(first, second) : 0). }}} Checked the source, code is broke. ",Bugs,closed,To Be Determined,regex,Boost 1.44.0,Problem,fixed,regex sub_match length,