max double

Les hlhowell at pacbell.net
Sat Dec 16 10:34:27 UTC 2006


On Fri, 2006-12-15 at 22:49 -0600, Steve Siegfried wrote:
> Mike - EMAIL IGNORED wrote:
> > 
> > On Fri, 15 Dec 2006 19:44:42 -0500, Mike - EMAIL IGNORED wrote:
> > 
> > > How do I find the max double on my FC4?
> > > Thanks,
> > > Mike.
> > 
> > Mia culpa. I see that I did not clearly state my question. 
> > What include file and macro should I use to get the max
> > double in a c++ program?
> > 
> > Thanks again,
> > Mike.
> 
> 
> 
> #include <math.h>
> #include <float.h>
> 
> then reference "LDBL_MAX"

Unless Fedora breaks conventions, LDBL_MAX would be for an 80bit number,
with 64 bits of precision.  I think he is just wanting double DBL_MAX
would likely be the macro, but as I said earlier he should check the
"math.h" file for it.  If it is not in math.h, then check float.h.

Regards,
Les H




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