Re: structs in Mutable containers

On 9/16/08 10:22 AM, Clark Cox said: >> This is what I was remembering: >> > understanding_strict_aliasing.html#introduction> > >OK, examples that don't involve type-punned pointers: > *SNIP* So... I think I have it now: - casting NSPoint to/f

Re: structs in Mutable containers

On Tue, Sep 16, 2008 at 9:57 AM, Sean McBride <[EMAIL PROTECTED]> wrote: > On 9/16/08 9:45 AM, Clark Cox said: > >>> NSPoint and CGPoint may be the same now, but they may not always be. >>> (Consider that NSAffineTransformStruct and vImage_AffineTransform were >>> the same, but the former changed f

Re: structs in Mutable containers

On 9/16/08 9:45 AM, Clark Cox said: >> NSPoint and CGPoint may be the same now, but they may not always be. >> (Consider that NSAffineTransformStruct and vImage_AffineTransform were >> the same, but the former changed from float to CGFloat and the latter >> stayed float, even in 64 bit.) >> >> Als

Re: structs in Mutable containers

On Tue, Sep 16, 2008 at 7:49 AM, Sean McBride <[EMAIL PROTECTED]> wrote: > On 9/16/08 8:24 PM, Graham Cox said: > >>CGPoints and NSPoints have the same structure so you can >>cast one to t'other. > > You shouldn't really. You should use NSPointFromCGPoint/ > NSPointToCGPoint. Their implementation

Re: structs in Mutable containers

On 9/16/08 8:24 PM, Graham Cox said: >CGPoints and NSPoints have the same structure so you can >cast one to t'other. You shouldn't really. You should use NSPointFromCGPoint/ NSPointToCGPoint. Their implementation is in NSGeometry.h and is not a simple cast. NSPoint and CGPoint may be the same

Re: structs in Mutable containers

What's wrong with +[NSValue valueWithCGPoint:CGPointMake(x, y)] ? On 16 Sep 2008, at 13:41, Phil wrote: On Tue, Sep 16, 2008 at 10:46 PM, Christian Giordano <[EMAIL PROTECTED]> wrote: I just realized valueWithPoint is not available on the iPhone SDK It's just a convenience method for some

Re: structs in Mutable containers

On Wed, Sep 17, 2008 at 12:41 AM, Phil <[EMAIL PROTECTED]> wrote: > [NSValue valueWithBytes:somePoint objCType:@encode(NSPoint)] > Should be: NSPoint somePoint = NSMakePoint(x,y); [NSValue valueWithBytes:&somePoint objCType:@encode(NSPoint)]; Phil ___

Re: structs in Mutable containers

Yep, this should work as well. Thanks, chr On Tue, Sep 16, 2008 at 1:41 PM, Phil <[EMAIL PROTECTED]> wrote: > On Tue, Sep 16, 2008 at 10:46 PM, Christian Giordano > <[EMAIL PROTECTED]> wrote: >> I just realized valueWithPoint is not available on the iPhone SDK >> > > It's just a convenience met

Re: structs in Mutable containers

On Tue, Sep 16, 2008 at 10:46 PM, Christian Giordano <[EMAIL PROTECTED]> wrote: > I just realized valueWithPoint is not available on the iPhone SDK > It's just a convenience method for something like: [NSValue valueWithBytes:somePoint objCType:@encode(NSPoint)] You can implement this yourself in

Re: structs in Mutable containers

well can you manage the lifetime of the CGPoints well enough to use valueWithPointer: which, if I read it correctly, doesn't free the pointer when it's done? Or just write your own NSObject derivation you can pass a CGPoint to, by value and have it copied, or as a pointer, but which it owns

Re: structs in Mutable containers

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

Re: structs in Mutable containers

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? ... addO

Re: structs in Mutable containers

I didn't think about NSValue, thanks. Do you mean valueWithPointer? Cheers, chr On Tue, Sep 16, 2008 at 11:00 AM, Phil <[EMAIL PROTECTED]> wrote: > On Tue, Sep 16, 2008 at 9:18 PM, Christian Giordano > <[EMAIL PROTECTED]> wrote: >> Hi guys, I'm finding myself trying to add to mutable containe

Re: structs in Mutable containers

On Tue, Sep 16, 2008 at 9:18 PM, Christian Giordano <[EMAIL PROTECTED]> wrote: > Hi guys, I'm finding myself trying to add to mutable containers like > NSMutableDictionary or NSMutableArray instead of NSObjects subclasses, > just structs. For instance in a NSMutableDictionary the key was an > integ

structs in Mutable containers

Hi guys, I'm finding myself trying to add to mutable containers like NSMutableDictionary or NSMutableArray instead of NSObjects subclasses, just structs. For instance in a NSMutableDictionary the key was an integer defined with #define. In this case I sort it with: ... forKey:[[NSNumber alloc] ini