how can i copy an array from a class and double the size of the new array? :     CDCatalogue::CDCatalogue() //creates array of 4
    {
	    maxsize=4;
	    numcds = 0;
    	cds = new CD[maxsize];
    }


//this copy cat into new array with double the size of cat

    CDCatalogue::CDCatalogue(const CDCatalogue& cat)
    {
	

    }
    
