Re: SmartPointer & User Conversion & Sucking Compiler

From:
 coder_lol@yahoo.com
Newsgroups:
comp.lang.c++
Date:
Tue, 12 Jun 2007 00:03:41 -0700
Message-ID:
<1181631821.909921.242930@a26g2000pre.googlegroups.com>
On Jun 11, 11:04 pm, coder_...@yahoo.com wrote:

MS VS 7.0 happily resolves by SmartPointer and Inheritance, but I got
to use another target compiler and it does not accept user conversion
for templates. Can I forced a recast somehow? I have judiciously
checked almost all constructs with both compiler before coding, but
during a heavy session, I forgot to check the user conversion part,
and now, I am stuck big time :(

So here is my user conversion for a smart pointer class (direct from
Scott Meyer) :)

public:
        template<class aNewType> operator SmartPointer<aNewType>()
        {
                return SmartPointer<aNewType>(pointee);
        }

For example,

Class Person;
Class Employee : Person
Class Student : Person

SmartPointer<Person> p;
SmartPointer<Employee> e;
SmartPointer<Student> s

p = e; // "Ambigous user conversion"

Can I safely force the recast? I have only 1-level of inheritance,
so maybe there is a quick rewrite that is safe?

Thanks,


I thought of something dirt ugly. Since my refcount is in the base
class P, I could just do the following:

SmartPointer<Person> p(s.getPointee);

Ugly, but that should be safe...?!?

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