Jonathan Wakely
7a42b1fa1a
Partially revert r12-4190-g6da36b7d0e43b6f9281c65c19a025d4888a25b2d because using __and_<..., is_copy_constructible<T>> when T is incomplete results in an error about deriving from is_copy_constructible<T> when that is incomplete. I don't know how to fix that, so this simply restores the previous constraint which worked in this case (even though I think it's technically undefined to use is_copy_constructible<T> with incomplete T). This doesn't restore exactly what we had before, but uses the is_copy_constructible_v and __is_in_place_type_v variable templates instead of the ::value member. libstdc++-v3/ChangeLog: PR libstdc++/104242 * include/std/any (any(T&&)): Revert change to constraints. * testsuite/20_util/any/cons/104242.cc: New test.
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.