On 22 Oct 2013, at 14:48, ChanMaxthon <[email protected]> wrote: > Just put a set of braces after every case: and it should be okay. A set of > braces here actually sets up a mini stack frame that makes ARC work. >
非常感谢 Works perfectly now. (I still would like to know whether my code was faulty, or whether this is a compiler bug) Kind regards Gerriet. >> On 2013年10月22日, at 15:41, "Gerriet M. Denkmann" <[email protected]> wrote: >> >> Converting to Arc (Xcode 5.0). >> >> This works fine without Arc (regardless whether TRIGGER_ERROR is defined or >> not): >> >> NSMutableString *mus = [ NSMutableString string ]; >> NSString *word = @"abc"; >> >> switch( self.colourType ) >> { >> case colour_link: >> [ mus appendString: @"<a href=\"" ]; >> #define TRIGGER_ERROR >> #ifdef TRIGGER_ERROR >> NSString *urlStr = [ word stringByAddingPercentEscapesUsingEncoding: >> NSUTF8StringEncoding ]; >> [ mus appendString: urlStr ]; >> #else // no_ERROR >> [ mus appendString: [ word stringByAddingPercentEscapesUsingEncoding: >> NSUTF8StringEncoding ] ]; >> #endif // no_ERROR >> >> break; >> >> default: >> [ mus appendString: word ]; >> }; >> >> But with Arc, if TRIGGER_ERROR is defined, I get an error: "Switch case is >> in protected scope" with the further explanation: "Jump bypasses >> initialization of retaining variable". >> >> >> Was the old (non-arc) code faulty (but the compiler did not notice this)? >> Why is the arc-version (with TRIGGER_ERROR defined) wrong? >> _______________________________________________ Cocoa-dev mailing list ([email protected]) 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 [email protected]
