Re: [Mesa3d-users] Mesa under hp 11

[M. L. <meh...@co...>]

Hi

Brain I am glade at last someone got your attention!!!!!

When it comes to HPUX platforms finite(x) and isfinite(x) is been a bug
for long long time. I 've send you email with patch every time the new
vesion of Mesa was out!!.


I 've been porting Mesa for the HPUX Archive for long time now. I hope to see
some change  in future release of Mesa.


Thanks

				__Mehdi
 

> 
> Rouben Rostamian wrote:
> > Brian, re your message:
> > 
> > 
> >>In src/mmath.h, try replacing
> >>
> >>#define IS_INF_OR_NAN(x)        (!finite(x))
> >>
> >>with:
> >>
> >>#define IS_INF_OR_NAN(x)        (!isfinite(x))
> >>
> >>
> >>The later function is stancard in C99.  Could you or anyone else using
> >>HPUX look at the system headers (and math.h in particular) to see if
> >>_ISOC99_SOURCE is used?  Looking at RH Linux headers, I think that might
> >>be the symbol to test to do this:
> >>
> >>#ifdef _ISOC99_SOURCE
> >>#define IS_INF_OR_NAN(x)        (!isfinite(x))
> >>#else
> >>#define IS_INF_OR_NAN(x)        (!finite(x))
> >>#endif
> > 
> > 
> > I don't know about HPUX, but Section 6.10.8 of the C99 standard has
> > an explicit list of predefined macros:
> > 
> >     6.10.8 Predefined macro names
> >     
> >     The following names shall be defined by the implementation:
> > 
> >         __LINE__          [description snipped]
> >         __FILE__          [description snipped]
> >         ...
> >         __STDC_VERSION__  The decimal constant 199901L  (footnote)
> > 
> >         (footnote) This macro was not specified in ISO/IEC 9899-1990
> >         and was specified as 199409L in ISO/IEC 9899/AMD1:1995.
> > 
> > Therefore it appears that a portable test would be 
> > something like the following:
> > 
> > #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
> > #define IS_INF_OR_NAN(x)        (!isfinite(x))
> > #else
> > #define IS_INF_OR_NAN(x)        (!finite(x))
> > #endif
> > 
> 
> Aurelio wrote:
> 
> > I could find no _ISOC99_SOURCE nor __STDC_VERSION__
> > any where under /usr/include.
> > 
> > /usr/include/math.h contains:
> > 
> > /******** HPUX EXTENSIONS *************************************/ 
> > 
> > #ifdef _INCLUDE_HPUX_SOURCE
> > .
> > .
> > #  define isfinite(x)           _ISFINITE(x)
> > .
> > .
> > #endif /* _INCLUDE_HPUX_SOURCE */
> 
> 
> In light of these two replies, maybe this would do it:
> 
> 
> #if defined(isfinite)
> #define IS_INF_OR_NAN(x)        (!isfinite(x))
> #elif defined(finite)
> #define IS_INF_OR_NAN(x)        (!finite(x))
> #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
> #define IS_INF_OR_NAN(x)        (!isfinite(x))
> #else
> #define IS_INF_OR_NAN(x)        (!finite(x))
> #endif
> 
> 
> -Brian
> 
> 
> 
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