Objective-C. Pointers to Functions

Each day I see more and more nice and well-known C-things working in Objective-C.
Here is a program demonstrating how to work with the pointer to a function in Objective-C:

#import <Foundation/Foundation.h>

void hello(char str[])
{
    NSLog(@"%s", str);
}

int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    char word[] = { 'H', 'e', 'l', 'l', 'o', '\0' };
    hello(word);
    
    const char* say = "hello, world!";
    hello(say);
    
    void (*fnHello)(char[]);
    fnHello = hello;
    fnHello("bye");
    
    [pool drain];
    return 0;
}

The screenshot: