Re: Problem with NSString

[Lars Sonchocky-Helldorf]

Am 30.01.2011 um 18:16 schrieb David Chisnall:

> On 30 Jan 2011, at 16:51, Ivan Vučica wrote:
>
> > while(![@"Quit" isEqualToString:word2])
> > or
> > while(![word2 isEqualToString:@"Quit"])
>
>
> Straying wildly off-topic, but the first form is preferable from  
> the compiler's point of view.  It means that the class of the  
> receiver is known at compile time, which means that we can have a  
> better stab at speculative inlining.

And not only that. It is also a good practice of defensive coding,  
e.g. you don't run into problems if word2 happens to be Nil.

> This is currently only done in an experimental optimisation pass on  
> my machine, but it will probably become one of the standard  
> Objective-C passes used by clang for the GNUstep runtime sometime  
> this year.

Great! I am looking forward to this.

> David

cheers,

        Lars