id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
686	regex_token_iterator can segfault	dakkar	John Maddock	"{{{
regex_token_iterator and u32regex_token_iterator can
dereference a 0 pointer in the following case:
- iterating over a string with no matches for the split
regexp
- asking for non-matches (the submatches array starts
with -1)
- incrementing the iterator the first time

in the non-unicode version, nothing happens; but in the
unicode version, the underlying u8_to_u32_iterator
causes a segfault.

I'm attaching a small test case, and a (seems working)
patch.
}}}"	Bugs	closed		regex	None		Fixed