I have came across the following code, and being a c beginner, I came here for your help.

This function is from a c implmentation of a queue.

Bool queuePut(Queue *q, char c) 
{
    void beep();

    if (queueFull(q)) 
    {
        beep();
        return false;
    }

    //do stuff

    return true;
}

So, I am getting a strange error with gcc on the void beep(). Can someone please explain me what is this, declaring a function inside a function. Or is it the void beep() simply out of place? I was given this code and there's always the possibility that it isn't correct.

Thanks.