On 27/05/2011, at 11:53 AM, Ken Thomases wrote: > %u > >> I'm confused about how to correctly write format specifiers for both 32 and >> 64-bit runtimes. The 64-bit porting guide doesn't spell it out (yet you end >> up with code peppered with warnings that you should examine the use of the >> format specifier without docs properly explaining their correct use). It's >> also not clear to me whether just 'unsigned' is a fixed-size quantity or >> not, depending on architecture. > > Just "unsigned" is shorthand for "unsigned int". Between the Mac's 32-bit > and 64-bit architectures, int doesn't change size. That can't be > generalized, although it's darn-near universal. > > However, that's irrelevant. The format specifiers don't indicate a size. > They indicate a type. For "unsigned", you use "%u". That's the end of the > story.
Thanks Ken, very helpful. I just looked again at the 'string format specifiers' page in the docs. Seems it's been much fleshed out since I last looked, and sure enough it's now much clearer what to use when. --Graham _______________________________________________ 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
