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Date: Sat, 27 May 2023 08:49:47 +0200
From: Jₑₙₛ Gustedt <jens.gustedt@...ia.fr>
To: Rich Felker <dalias@...c.org>
Cc: Joakim Sindholt <opensource@...sha.com>, musl@...ts.openwall.com
Subject: Re: [C23 string conversion 1/3] C23: add the new
memset_explicit function
Rich,
on Fri, 26 May 2023 16:57:21 -0400 you (Rich Felker <dalias@...c.org>)
wrote:
> Do you have something in mind about how the explcit_bzero
> implementation we have doesn't do that?
I would be more comfortable with a stronger synchronization barrier
that works for all memory models and also in the presence of threads
and signals. So maybe using `a_barrier()`?
Also I think that relying on the compiler's `memset` is not a good
strategy. This puts us at their merci of whatever efficiency games
they are playing, now or in the future.
Thanks
Jₑₙₛ
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