https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63631
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|FIXED |INVALID
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
sregex_iterator::operator->() yields a smatch_results and smatch_results::str()
yields a temporary string.
The reason is that smatch_results doesn't contain strings, it contains
iterators into some other string. When you want to retrieve a match it
constructs a new string from the relevant iterators. That avoids having to
construct all the strings up front when they may never be needed.
