Re: Private constructor

From: Ron Natalie (ron_at_sensor.com)
Date: 12/21/03 

Date: Sun, 21 Dec 2003 13:45:01 -0500

"Andy" <garth_rockett@yahoo.com> wrote in message news:96dbbc80.0312210934.4b902a49@posting.google.com...

> 1) Static member functions cannot access any non-static data members
> of a class.

They can if they access it through a pointer or a reference. You are right, they
can't without as they have no "this" object to get the member from. However, given
an object pointer they can get access to the private non-static members on the object.

>
> With constructors, this is different although they are non-static. The
> static member function can instantiate an object of the class it
> belongs to. This is what I found out.

It's not really that different. The static member can create an object of the
type because the constructor is ACCESSIBLE (i.e., the private/protected/public
rules).

You see there are two different principles here:

static versus non-static (I don't know what to call this distinction in general).
Access control (which is the public/private/static protected rules).
 

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