Yes, sorry - i meant /usr/include/math.h Because CGFloat is typedef'd to float on 32bit and double on 64bit i have to swap between, eg, atan and atanf depending on my build settings. I have a framework which is intended to support 32bit and 64bit.
I thought this may have been a common scenario and some useful macros might already exist. Thanks On 10 August 2010 14:10, lbland <lbl...@vvi.com> wrote: > hi- > > On Aug 10, 2010, at 8:42 AM, steven Hooley wrote: > >> Is there a preferred way to use the Math.h functions with CGFloats >> that is 32 and 64 bit safe? >> Do some Macros already exist somewhere? >> >> Should i even be using Math.h functions in Cocoa? > > What do you mean by Math.h ? Do you mean: math.h (/usr/include/math.h) ? > > You can use math.h in Cocoa. > > math.h is a C standard and doesn't know about CGFloat (except that CGFloat is > typedef to double or float). math.h functions generally take doubles (with > implicit promotion of floats), or you can use the float counterpart (such as > cos() v.s. cosf() ). > > thanks!- > > -lance _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
