On Jul 22, 2008, at 11:54 PM, Steve Cronin wrote:
I find if I have a method which returns an NSString for example,
that often, in the interior of that method I will use an
NSMutableString to construct the string I intend to return. My
question concerns the actual final return statement.
Is there ANY reason to choose A over B?
A) return [NSString stringWithString:myWorkingMutableString];
B) return myWorkingMutableString;
It just kinda sticks in my craw me that I 'promised' an NSString and
using (B) I don't return one.
Yeah I do understand inheritance and that a mutable entity
isKindOfClass of the base class
I looking for reasons like edge cases, compiler optimization, error
trapping, portability, etc..
Is there ANY benefit to the costs associated with the explicit
declaration of (A)?
I think there was a pretty good discussion of this issue in this
thread: http://lists.apple.com/archives/Cocoa-dev/2008/Jun/msg00188.html
Cheers,
Ken
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