On Wed, 23 Dec 2009, Przemysław Czerpak wrote: hi,
> > on platforms where available, what is the significance of including > > ieeefp.h, given that even without it, things seem to be doing OK? > > Probably nothing though sometimes is good to check the details in > platform documentation. It's possible that in ieeefp.h some functionality > is extended, i.e. some math functions from math.h can be replaced by > C99 compatible macros which can operate on any floating point types. so, if available, using these is desirable? i'm asking because looking at current src/rtl/math.c, except for a few specific cases, isinf() is used: 334 # if defined( HB_OS_SUNOS ) 335 else if( !finite( dResult ) ) 336 # elif defined( HB_OS_OS2 ) 337 else if( !isfinite( dResult ) ) 338 # else 339 else if( isinf( dResult ) ) 340 # endif at the same time, looking at the solaris manuals for finite(), isinf() and finite() here (won't have access to my sol box till next year): http://docs.sun.com/app/docs/doc/819-2246/isinf-3m?l=Ja&a=view http://docs.sun.com/app/docs/doc/819-2246/isfinite-3m?l=Ja&a=view http://docs.sun.com/app/docs/doc/801-6680-03/6i11qck75?a=view it seems that the currently special-cased finite() for hb_os_sunos specifically fits your above explanation less than as if it was to let use isinf() as well. i may very well be misunderstanding you, though.. -- [-] mkdir /nonexistent _______________________________________________ Harbour mailing list (attachment size limit: 40KB) [email protected] http://lists.harbour-project.org/mailman/listinfo/harbour
