Simple "Hello World" Using Grand Central Dispatch ( BSD , OS-X )

Simple piece of GCD code:


#include "stdio.h"
#include <dispatch/dispatch.h>
#include <Block.h>

int main()
{

dispatch_queue_t dq;

dq = dispatch_queue_create("HelloWorld", NULL);

dispatch_block_t block = ^{printf("===========Hello world.\n");};

dispatch_async(dq,block);

dispatch_main();

return 0;
}