https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102918
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2021-10-25
Status|UNCONFIRMED |WAITING
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
std::sub_match only has one constructor, and it initializes the bool. The only
stores to that variable are literal treu or false values, or the result of a
boolean expression first != last. So there's no way I can see for the library
to cause this behaviour Are you sure you're not causing undefined behaviour in
your own code?
Have you tried building with -D_GLIBCXX_DEBUG to get runtime checks in
std::match_results.
Without more details there's nothing we can do here. The <regex> code looks
correct.
