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/* Contributed by Nicola Pero - Fri Mar  9 21:35:47 CET 2001 */
#include <objc/objc.h>
#include <objc/Object.h>
 
/* Test defining a protocol, a class adopting it, and using an object
   of type `id <protocol>'. */
 
@protocol Enabling
- (BOOL) isEnabled;
- (void) setEnabled: (BOOL)flag;
@end
 
@interface Feature : Object <Enabling>
{
  const char *name;
  BOOL isEnabled;
}
@end
 
@implementation Feature
- (BOOL) isEnabled
{
  return isEnabled;
}
- (void) setEnabled: (BOOL)flag
{
  isEnabled = flag;
}
@end
 
int main (void)
{
  id <Enabling> object;
 
  object = [Feature new];
 
  [object setEnabled: YES];
  if (![object isEnabled])
    {
      abort ();
    }
 
  return 0;
}