GNU bug report logs - #55895
[PATCH] maint: Fix ptr_align signature to silence -Wmaybe-uninitialized

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From: Anders Kaseorg <andersk <at> mit.edu>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 55895 <at> debbugs.gnu.org
Subject: bug#55895: [PATCH] maint: Fix ptr_align signature to silence -Wmaybe-uninitialized
Date: Sat, 11 Jun 2022 09:30:28 -0700

On 6/11/22 09:12, Paul Eggert wrote:
> First, a const pointer can point to uninitialized storage.

Of course it can, but my claim was there’s never a reason.  A pointer to 
uninitialized (or zero-initialized) memory that won’t be written is 
valid but not _useful_.  The reason you’d align a pointer is so you can 
store something there that needs to be aligned.  It’s not an accident 
that all of the current callers work that way.

Anders

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