Write a function code for delete value in Queue

void deleteval(){
	 int val;
	 if(front == -1){
	    printf("underflow");
	 }
	 else{
	     val=Queue[front];
	     if(front==rear){
		 front=rear=-1;
	     }
	    else{
	       front++;
	    }
	    printf("Deleted item:%d",val);
        }
}