I just realized valueWithPoint is not available on the iPhone SDK and, I can't understand why, it can't be discussed here. Both things of course suck! :)
Thanks a lot, chr On Tue, Sep 16, 2008 at 11:24 AM, Graham Cox <[EMAIL PROTECTED]> wrote: > > On 16 Sep 2008, at 7:18 pm, Christian Giordano wrote: > >> ... forKey:[[NSNumber alloc] initWithInt:BAND_RED]]; >> >> Not a really elegant solution but I can understand that those >> containers require pointers. >> >> Now I need to create a NSMutableArray of CGPoint, how can I make it >> became a pointer? >> >> ... addObject:CGPointMake(x,y)]; >> >> returns indeed "error: incopatible type for argument 1 of 'addObject:' >> >> Is there a more elegant way to use structs as key or as mutable >> container's items? > > > [NSValue valueWithPoint:NSMakePoint( x, y )]; > > this wraps a NSPoint with an object that can be stored in a dictionary. > CGPoints and NSPoints have the same structure so you can cast one to > t'other. > > For keys, the usual approach if your keys are simply constants is to define > them as literal strings: > > // .h > > extern NSString* BAND_RED; > > > // .m > > NSString* BAND_RED = @"BAND_RED"; > > A literal string is directly usable as an object. If the key needs to change > dynamically (rare) then strings are still a good bet, but the "wrap in a > NSValue" approach is acceptable I guess. > > > hth, > > 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 [EMAIL PROTECTED]
