The Meaning of Parentheses after Pointer
<p>I want to ask what does the <code>(0)</code> mean after the pointer i.e. <code>Node* ptr1(0)</code>. </p>

<pre><code>struct Node
{
   string info;
   Node * next
};

int main()
{ 
   Node* ptr1 (0), *ptr2 (0),
   ptr1 = new Node;
   ptr2 = new Node;
}
</code></pre>