title: What is the difference between "new" and "malloc" and "calloc" in C++?
body: <p>What is the difference between &quot;<code>new</code>&quot; and &quot;<code>malloc</code>&quot;  and &quot;<code>calloc</code>&quot; and others in family?</p>
  <p>(When) Do I need anything other than &quot;<code>new</code>&quot; ?</p>
  <p>Is one of them implemented using any other?</p>