Re: Thoughts on C version supported for PHP-Next

On Wed, Jul 8, 2015 at 9:16 AM, Matt Wilmas <php_lists@realplain.com> wrote: > 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_lists@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 Right now we definitely require some of C99. The topic was directed more at whether we can adopt it as a whole.