dynamically instantiating a class

[Aurelien]

I'm trying to dynamically instantiate a class like so:

Class * clazz;
id <PeerGroup> p;

clazz = NSClassFromString ( @"Platform" );
p = (id <PeerGroup>) NSAllocateObject( *clazz, 0, NULL);
if ( [p conformsTo:@protocol(PeerGroup)] )
  NSLog ( @"Yes, this is indeed a PeerGroup" );
else
  NSLog ( @"No, this isn't a PeerGroup" );

Guess the result...

What's wrong ?

Aurélien