Re: Passing shared_ptr to function that creates obj that shared_ptr points to

20 Jun 2003


      Drew wrote:
...
void Fn(ParentPtr& pObj)
{
  pObj = ParentPtr(new Parent());
  pObj->m_value = 10;
}
If I pass the parent pointer, it compiles and works fine. If I pass 
the derived pointer I get:
...
error C2664: 'Fn' : cannot convert parameter 1 from 'DerivedPtr'
to 'ParentPtr &'
You can't assign to a shared_ptr (assuming ParentPtr is a shared_ptr as 
the moderator has suggested).  You have to call reset on it
e.g.

pObj.reset(new Parent());

HTH

Russell

Re: Passing shared_ptr to function that creates obj that shared_ptr points to

Russell Hind