C - General Programming - Beep function

In this tutorial we will see a simple beep function. Let's take an example of the beep function:

/*                                                                              
** Made by BadproG.com                                                          
*/

#define	       	SOUND_IT(x)    (x-'@')
#include        <stdio.h>

void    beep(void)
{
  putchar(SOUND_IT('G'));
  fflush(stdout);
}

int     main()
{
  beep();
}

Just compile and each time you will execute it, you will hear a simple beep.