Re: Equivalent of isKindOfClass for Foundation Types?
Re: Equivalent of isKindOfClass for Foundation Types?
- Subject: Re: Equivalent of isKindOfClass for Foundation Types?
- From: Scott Anguish <email@hidden>
- Date: Thu, 4 May 2006 17:31:01 -0400
I think you'll only ever get objects here..
KVC will wrap the double for you automatically
http://developer.apple.com/documentation/Cocoa/Conceptual/
KeyValueCoding/Concepts/DataTypes.html#//apple_ref/doc/uid/20002171
On May 4, 2006, at 11:44 AM, Christopher Hickman wrote:
I need to test if the value passed to my NSValueTransformer is an
NSTimeInterval. Since NSTimeInterval is just a typedef from double
and not
a class, I can't use the NSObject methods to test its type.
The best I can think of now is to test it with typeof() against
NSTimeInterval, but I think I should really allow any numeric type
for this
transformer.
Currently my code says this:
- (id)transformedValue:(id)value;
{
if (typeof(value) != typeof(NSTimeInterval)) { //bail if not
NSTimeInterval
return nil;
end if
NSMutableString *result = [NSMutableString string];
//do my stuff
return result;
}
What is the best way to test this value to see if it is numeric, so my
transformer could be a little more flexible?
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