Both C and Objective-C support implicit casting for the primitive types. float f = 100.0f; f += 100;
will give the expected result, because the compiler will see (float) + (int) and cast the int to a float automatically. The conversion rules are part of the ANSI C standard and apply in Objective-C as well. Any modern compiler will also warn if you use an implicit conversion that could result in a loss of precision. On Oct 5, 2010, at 8:16 AM, Shawn Bakhtiar wrote: > > > Eh? > > Did you just call typecasting "*completely* unnecessary and pointless"... > > Can you please explain? > > I have plenty of C code, in *.c files that would disagree with you. > > You may be correct in that in Objective-C this may no longer be an issue, as > the compiler does your work for you, but that was not an assumption I was > making. > >> Subject: Re: Confused about floats >> From: scott_r...@killerbytes.com >> Date: Tue, 5 Oct 2010 08:56:45 -0600 >> CC: cocoa-dev@lists.apple.com >> To: shashan...@hotmail.com >> >> On Oct 5, 2010, at 8:51 AM, Shawn Bakhtiar wrote: >> >>> Also if x is a float, make sure you use the proper type cast, or values, ie >>> ( x = x + 120.00) or (x = y + (double)z , where x and y are double and z >>> is an int). >> >> That is *completely* unnecessary and pointless. >> >> -- >> Scott Ribe >> scott_r...@elevated-dev.com >> http://www.elevated-dev.com/ >> (303) 722-0567 voice >> >> >> >> > > _______________________________________________ > > 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/velocityboy%40rodentia.net > > This email sent to velocity...@rodentia.net > _______________________________________________ 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
