[Bug libstdc++/48101] obscure error message with std::set<const int>

[ldionne.2 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48101

Louis Dionne <ldionne.2 at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ldionne.2 at gmail dot com

--- Comment #12 from Louis Dionne <ldionne.2 at gmail dot com> ---
FWIW, we now consider it a bug in libc++ that we accept std::allocator<const
T>, and we're trying to remove that "extension".