https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92570
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |7.5.0
Summary|clang fails to instantiate |[8/9/10 Regression] clang
|std::optional<A> if A is |fails to instantiate
|not const copy |std::optional<A> if A is
|constructible |not const copy
| |constructible
Known to fail| |10.0, 8.3.0, 9.2.0
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Marking as a regression, since clang is happy with the libstdc++ headers from
GCC 7. I haven't analysed where the bug is yet though.
