Just a small program to test Objective-C blocks, GCD and GUI on Ubuntu

main.m

//
//  main.m
//  Just a little test case for Objective-C 2.0 on Ubuntu
//
//  Created by Tobias Lensing on 2/22/13.
//  More cool stuff available at blog.tlensing.org.
//

#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
#import <dispatch/dispatch.h>

int main(int argc, const char * argv[])
{    
    @autoreleasepool {
        int multiplier = 7;
        int (^myBlock)(int) = ^(int num) {
            return num * multiplier;
        };
         
        NSLog(@"%d", myBlock(3));

        dispatch_queue_t queue = dispatch_queue_create(NULL, NULL); 

        dispatch_sync(queue, ^{
            printf("Hello, world from a dispatch queue!\n");
        });

        dispatch_release(queue);        
    }

    @autoreleasepool {
        [NSApplication sharedApplication];
        NSRunAlertPanel(@"Test", @"Wow it works!", @"OK", nil, nil);
    }
                
    return 0;
}