id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13493	boost::regex doesn't accept a regular expression anymore	sebastian.panek@…	John Maddock	"I recently switched from Boost 1.61 to Boost 1.66 and discovered the following problem with boost::regex in 1.66:
A regular expression is recognized as erroneous, i. e. after construction boost::regex::status() returns a value != 0, but the same expression was accepted in previous boost versions. Calling boost::regex_search() with such a erroneous boost::regex object leads to a crash.

The expression is:

{{{
([0-9]*)\.([0-9]*)(\.([0-9]*)(\.([0-9]*))?)?

}}}

My C++ code looks as follows:


{{{
static const boost::regex versionRegex( ""([0-9]*)\\.([0-9]*)(\\.([0-9]*)(\\.([0-9]*))?)?"" );
assert( versionRegex.status() == 0 && ""the regular expression must be valid"" );

}}}

After switching the boost version to 1.66 the assertion above fails."	Bugs	new	To Be Determined	regex	Boost 1.66.0	Regression			Sebastian Panek