2009/6/23 Igor Mozolevsky <i...@hybrid-lab.co.uk>: > 2009/6/23 Graham Cox <graham....@bigpond.com>: >> Just a quickie... >> >> If I have: >> >> BOOL someValue = [object returnsBool]; >> >> someValue |= [anotherObject alsoReturnsBool]; >> >> is the second line subject to short-circuit evaluation? In other words if >> the first method returns YES, is the second called? > > The second one will be called - | is a bitwise OR, whereas || is a logical OR.
So, the second will only be evaluated if the first returns NO when BOOL someValue = [object returnsBool] || [anotherObject alsoReturnsBool]; whereas what you have is BOOL someValue = [object returnsBool] | [anotherObject alsoReturnsBool]; which is a bitwise OR of two YESes, essentially. -- Igor _______________________________________________ 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
