Re: NSInvocationOperation error

On 3 Dec 2010, at 18:30, Germ=E1n Arias wrote:

> Well, in the GNUstep documentation I don't see NSInvocationOperation
> class. Then, I suppose this class don't exist on GNUstep.
>=20
> On jue, 2010-12-02 at 21:36 -0800, aphuk wrote:
>> Hi, I am new to Objective-C and GNUstep so my question might be a =
little
>> basic but please help me out since I am stuck.
>>=20
>> We are trying to create an instance of a NSInvocationOperation and =
put it in
>> the NSOperationQueue as given below
>>=20
>> NSInvocationOperation* putOp =3D [[[NSInvocationOperation alloc]
>> initWithTarget:self selector:@selector(put)
>>                                                           =
object:[NSNumber
>> numberWithInt:5]] autorelease];
>>=20
>> But on compilation, I get the below error :
>>=20
>> NSInvocationOperation undeclared (first use in this function)
>>=20
>> What am I missing here?

Yes, this is a non-existent class.  Searching the web for it, it seems =
it's a class from the iPhone operating system.
Looking at the documentation, it seems quite simple though ... just a =
simple wrapper to run an invocation as an NSOperation ... s/he could get =
a similar effect easily by writing a subclass of NSOperation.