Hi all,

----- Original Message -----
From: "Matt Wilmas"
Sent: Wednesday, July 08, 2015

Hi Kalle,

----- Original Message -----
From: "Kalle Sommer Nielsen"
Sent: Wednesday, July 08, 2015

Hi Matt

2015-07-08 17:00 GMT+02:00 Matt Wilmas <php_li...@realplain.com>:
Hi all,

----- Original Message -----
From: "Levi Morrison"
Sent: Sunday, May 10, 2015

Again, this is a C11 feature. It is supported by clang, gcc and MSVC.


To clarify this a bit: they permit anonymous unions in C89 and C99
code (meaning you do not need to pass flags like -std=c11 to enable
it).


What's the status on compiler requirements?  Are they, or will they be,
higher?

I'm going to take advantage of variadic macros (__VA_ARGS__) for better code generation with the parameter parsing implementation I'm finishing up, and
it would be nice to not have to make two versions with a compiler check.
e.g. for MSVC or GCC >= 3, but I don't know what else...

For 7.0, we are gonna focus on MSVC 2015 (VC14), although VC11 is also
known to work, we will do the 7.0+ releases with VC14 (that is
releasing later this month)

Right, but MSVC isn't a concern for the variadic macros thing I'm talking about (supported since 2005). [1]

I'm just wondering about the subject of this old thread: have we bumped, or will we, the minimum requirements for *ALL the other compilers* PHP "supports?" e.g. requiring some or all of C99 support? That would hopefully say whether we can rely on variadic macros. :-)

Thanks,
Matt

[1] https://en.wikipedia.org/wiki/Variadic_macro

Oops, nevermind! I just realized variadic macros are already being used in a few places, so all good there. :-)

Now been wondering about compound literals. Not required, but hopefully they're supported most everywhere now, for *in-place* optimization of the old zend_parse_parameters().

And is the latest MSVC about the only one that doesn't support C99's variable length arrays (e.g. size set at runtime), I think? (Haven't installed it.) Well, a minor thing that can be worked around...

Thanks,
Matt

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