Maybe I'm missing something, but how much do you really save by passing a shared pointer by reference?  Isn't passing a shared pointer by reference kind of dangerous?  Can you _always_ be guaranteed that it will work ok and the ref count won't go to zero and cause the object to be destroyed?
<br><br>I've always followed the guideline of passing shared pointers by value.&nbsp; Copying a shared pointer is extremely fast, or am I missing something?<br><br>Phillip Hellewell