Robert Dailey wrote:

On Mon, Jun 8, 2009 at 2:16 PM, Steven Watanabe <watanabesj@gmail.com <mailto:watanabesj@gmail.com>> wrote:

   AMDG


   Robert Dailey wrote:

       Just wondering what happens if I do this:

       boost::shared_ptr<Foo> foo;
       boost::shared_ptr<Bar> bar;
       if( foo && bar )
       {
        // Do stuff if both pointers are valid...
       }

       I did not see an overloaded && operator in the interface of the
       class. When
       using normal pointer semantics, this code is valid through implicit
       conversion of a pointer value to a boolean type.
       

   The same applies to shared_ptr.
   http://www.boost.org/libs/smart_ptr/shared_ptr.htm#conversions


Thanks. I figured this was the case but I guess I was just having trouble finding the header file in which this casting operator is implemented. I appreciate the answers to my embarrassingly obvious question.

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Here's a short explanation why you won't find operators && or || overloaded very often:

http://blog.emptycrate.com/node/363

For a more thorough explanation, see chapter 7 in More Effective C++.