dealloc.m

#import <Cocoa/Cocoa.h>

@interface Child : NSObject {
}
- (id)init;
- (void)dealloc;
@end
@implementation Child
- (id)init
{
    NSLog(@"Child init");
    if(self = [super init]){
    }
    return self;
}
- (void)dealloc
{
    NSLog(@"Child dealloc");
    [super dealloc];
}
@end

@interface Parent : NSObject {
    Child * child;
}
- (id)init;
- (void)dealloc;
@end

@implementation Parent

- (id)init
{
    NSLog(@"Parent init");
    if(self = [super init]){
	child = [[Child alloc] init];
    }
    return self;
}

- (void)dealloc
{
    NSLog(@"Parent dealloc");
    [child release];
    [super dealloc];
}

@end

int main(){
    Parent * parent = [[Parent alloc] init];
    [parent release];
    return 0;
}