[PD-dev] PD_LONGINTTYPE

[Miller Puckette]

OK... I need to fix a few bugs and quirks and put out a nice stable 0.48-2 -
I'll pull teh original one for that and hold off on more-toward-double-precision
for 0.49.

cheers
M

On Wed, Jun 20, 2018 at 09:49:18AM +0200, IOhannes m zmoelnig wrote:
> On 2018-06-20 02:51, Miller Puckette wrote:
> > I think m_pd.h should make a reasonable guess, in a way that makes it
> > easy to override.  Perhaps like this:
> > 
> > #if !defined(PD_LONGINTTYPE)
> > #if (sizeof(void *) > sizeof(long))
> > #define PD_LONGINTTYPE long long
> > #else
> > #define PD_LONGINTTYPE long
> > #endif
> > #endif
> 
> unfortunately, we cannot use sizeof() in pre-processor conditionals.
> 
> there might be some compiler-specific hacks to achieve something like
> that on C99-compliant compilers, but i don't really think it's worth it.
> (that is: i think being able to compile Pd with older microsoft
> compilers is more interesting, than adding quirks).
> 
> > 
> > There's a patch on github I haven't yet looked at closely - perhpas there's
> > a better fix there.
> > 
> 
> i've inluded the patch in my "more toward double-precision" PR, found at:
>  https://github.com/pure-data/pure-data/pull/300
> the original (single-patch) PR is
> https://github.com/pure-data/pure-data/pull/7
> 
> it is much simpler, as there the only known system with an LLP64 data
> model¹ (which mandates "long" to be 32bit on 64bit architectures) is... MSW.
> so it's simple enough to just special-case w64 and be done.
> 
> i've also included
> 
> 
> fgmasdr
> IOhannes
> 
> PS: i've just seen that the patch only addresses the amd64 (aka x86_64)
> architecture, while w64 also uses LLP64 on ia-64 (aka itanium).
> 
> ¹ https://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models
> 




> _______________________________________________
> Pd-dev mailing list
> Pd-dev at lists.iem.at
> https://lists.puredata.info/listinfo/pd-dev