linux-kernel - Re: [PATCH v2] <sys/param.h>: Add nitems() and snitems() macros

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Message-ID: <20200925174252.GO6061@redhat.com>
Date:   Fri, 25 Sep 2020 18:42:52 +0100
From:   Jonathan Wakely <jwakely@...hat.com>
To:     Alejandro Colomar <colomar.6.4.3@...il.com>
Cc:     fweimer@...hat.com, linux-man@...r.kernel.org,
        libc-alpha@...rceware.org, gcc@....gnu.org, rusty@...tcorp.com.au,
        linux-kernel@...r.kernel.org, libstdc++@....gnu.org,
        libc-coord@...ts.openwall.com, enh@...gle.com
Subject: Re: [PATCH v2] <sys/param.h>: Add nitems() and snitems() macros

On 25/09/20 18:30 +0200, Alejandro Colomar via Libstdc++ wrote:
>I have a similar number of ARRAY_SIZE() and ARRAY_SSIZE().
>I could have '#define snitems(arr) ((ptrdiff_t)nitems(arr))' in my projects,
>but is it really necessary?

The barrier for adding something to glibc headers should be a LOT
higher than "I could [do it in my own code], but is it really
necessary?"

>Did I convince you? :-)

No.