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Message-ID: <CAFk2RUbEtvgFb_FZmcM9L4-g1kG_E7S2p9gveM0Z5Fe=zEDm9w@mail.gmail.com>
Date: Tue, 22 Sep 2020 01:13:57 +0300
From: Ville Voutilainen <ville.voutilainen@...il.com>
To: Jonathan Wakely <jwakely@...hat.com>
Cc: Alejandro Colomar <colomar.6.4.3@...il.com>, Florian Weimer <fweimer@...hat.com>, gcc@....gnu.org,
"libstdc++" <libstdc++@....gnu.org>, Libc-alpha <libc-alpha@...rceware.org>,
libc-coord@...ts.openwall.com
Subject: Re: Expose 'array_length()' macro in <sys/param.h>
On Tue, 22 Sep 2020 at 01:07, Jonathan Wakely via Libstdc++
<libstdc++@....gnu.org> wrote:
> ># define array_length(arr) (std:size(arr))
>
> C++ programmers will not accept a macro for this.
..in other words, the C++17 version of it needs to be an inline
function that returns std::size of an array,
not a macro. All C++ versions need to be functions, and there should
not be any #defines in any of the
C++ code.
Why should this be array_length and not __array_length? This is a
vendor extension, so it should use
a name that is reserved for such?
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