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<== Date ==> <== Thread ==>
Subject: Re: NAN and INF
From: Marty Kraimer <[email protected]>
To: Brian McAllister <[email protected]>
Cc: [email protected]
Date: Mon, 22 Apr 2002 08:28:35 -0500


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.

Thanks,

Marty Kraimer

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Re: NAN and INF Brian McAllister
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