On Mar 25, 2014, at 3:51 PM, Dave <d...@looktowindward.com> wrote: > Some of the files I am processing contain in excess of 500 Integer values and > there can be around 3000 of these active at any one time.
That’s only a couple megabytes’ worth of address space (12MB if all of them are 64-bit.) > I’m wondering if it would be better to define the properies are > NSInteger/NSUIntger, or whether to define them as Int8/UInt8, or Int16/UInt16 > or Int32/UInt32. My opinion: in cross-platform code it’s annoying to work with types that are different sizes between platforms. It becomes all too easy to write code that compiles on one platform but generates warnings/errors on the other. It also raises the possibility that an operation might work on Mac OS, but overflow on iOS. So if something is supposed to be a particular size (as seems to happen in your app) declare it as a type of that size. If you don’t care about the size and it won’t ever exceed a few billion, use `int` or `unsigned`. If it needs to hold huge values, or if you want to be really conservative, use `SInt64` or `UInt64`. —Jens _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
