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From: "patrick.a.moran at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95883] Attributes on lambdas appear to be parsed in the
 wrong place
Date: Mon, 29 Jun 2020 21:12:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95883

Patrick Moran <patrick.a.moran at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |patrick.a.moran at gmail d=
ot com

--- Comment #3 from Patrick Moran <patrick.a.moran at gmail dot com> ---
My argument in favor of restoring the pre-9-series behavior is that of comp=
iler
portability.  When you have a lambda with a trailing return type that you w=
ant
to mark with __attribute__((always_inline)) there's now one syntax that wor=
ks
with GCCs before 9.1 and with clang (who is matching gcc), and another synt=
ax
that works with GCCs after 9.3, but not with any GCC before 9.3 or any vers=
ion
of clang.  If you want to write code that works with GCC 8.3 and 10.1, or w=
ith
both GCC 10.1 and any clang, then you have to write macros to move the
attributes around.

Whereas if the patch in this bug (or another like it), then at least the one
existing codebase I'm working on won't have to add a macro layer to be able=
 to
support lambdas across our range of supported compilers.=