On Jun 9, 2013, at 1:26 PM, Boyd Collier <bcolli...@cox.net> wrote: > > Quite by chance, I stumbled on to what seems to be an error that ought to be > caught by the compiler but wasn't. Here's an example: > > NSNumber *testNumber = [NSNumber numberWithInt:5]; > int testInt = (int)testNumber; > > […snip…] > > Should I file a bug report or is this a well-known anomaly that I've just > come across?
Sitting on a runway right now, so I can't double-check the C spec, but I believe this is a consequence of C's use of integers for truth types. A pointer must be convertible to integer type, because it can be used in the form `if (expressionOfPointerType)`. It follows that casting to int must also be allowed. I'm not sure what the spec says about the actual value of the result. --Kyle Sluder _______________________________________________ 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
