[Bug libstdc++/79522] std::regex_match always returns false

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79522

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You did get them swapped. Obviously the regex "abcdefg" can't match "def".

But even in your second example the behaviour is correct, std::regex_match
matches the entire string, not any part of it. "def" doesn't match "abcdefg" it
only matches part of it. Use std::regex_search for that.

(And "I don't know how C++ works" is still not a bug)