Marty,
> Brian McAllister wrote:
>
> >>>>On 4/11/2002 at 8:54:36 PDT, Rarback, Harvey wrote:
> >>>>
> >
> > >> For VMS I could define epicsMath.h as
> > >>
> > >> #ifndef epicsMathh #define epicsMathh
> > >>
> > >> #include <math.h> #define isinf(D) 0
> > >>
> > >> #endif /* epicsMathh */
> > >>
> > >> Any better ideas for implementing isinf on VMS?
> >
> > > Sounds ok to me. BTW, the same should apply to Tru64 Unix, aka Digital
> > > Unix, aka OSF-1.
> >
> > Digital Unix provides isnan()/isnanf() and finite()/finitef() for doubles
> > and floats, respectively. In libm, defined in math.h.
> >
> > finite() looks just like isinf().
> >
> > ----
> > Brian McAllister Controls Programmer/Beam Physicist
> > [email protected] MIT-Bates Linear Accelerator
> > (617) 253-9537 Middleton, MA
> >
>
> Sorry but I still don't know what I should do.
>
> For alpha and for vms I currently have
>
> #ifndef epicsMathh
> #define epicsMathh
>
> #include <math.h>
> #define isinf(D) 0
>
> #endif /* epicsMathh */
>
>
> Are you suggesting?
>
> ifndef epicsMathh
> #define epicsMathh
>
> #include <math.h>
> #define isinf(D) (!finite((D)))
>
> #endif /* epicsMathh */
>
> Please dont' respont without testing because I have no way to test on alpha or
> vms.
I tested the routines defined in math.h on
DEC C V5.9-005 on Digital UNIX V4.0 (Rev. 1229) and
Compaq C V6.2-003 on OpenVMS Alpha V7.3
and not surprisingly got the same results for the isnan and !finite routines:
a = 0.0 isnan(a) = 0 isinf(a) = 0
b = NaNQ isnan(b) = 1 isinf(b) = 1
c = INF isnan(c) = 0 isinf(c) = 1
--Harvey
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