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Date: Fri, 25 Jul 2014 19:02:56 +0200
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To: Julien Pauli <jpauli@php.net>
Cc: PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Thoughts on C version supported for PHP-Next
From: nikita.ppv@gmail.com (Nikita Popov)

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On Fri, Jul 25, 2014 at 6:37 PM, Julien Pauli <jpauli@php.net> wrote:

> Hey !
>
> Just a quick word to launch the debate.
> Disclamer : This is not a C vs C++ talk, thank you :-)
>
> We nowadays support C89 officially . It is very stable and well implemented
> in almost every compiler nowadays, but it is old and lack some features we
> could benefit from.
>
> Why not take PHP-Next step to support a more recent version ?
> Even C99 would be allright and C11 would be super cool (though pretty
> recent).
>
> I know we support lots of compilers (even if that's not really documented),
> and some of them could fail at supporting some C versions.
>
> However, as PHP-Next is a big step in modernizing PHP, why not have a
> discussion about the C versions our souce code base should support ?
>
> Just to say, perhaps it's a dead and debate because of a big blocker point.
>

I think the main question here is whether MSVC will have good C99 support
by the time PHP-Next is released. The other major compilers (GCC, Clang,
Intel) may not support all of C99 (esp stuff like FP pragmas), but have a
reasonable degree of support.

If we can, I'd be very much in favor of using C99. In particular mixed
code+declarations is a major code quality improvement to me.

Nikita

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