• Oleg (20/20) Nov 26 2014 Hello. I can't find siple way to realization this behavior:
• bearophile (5/7) Nov 26 2014 Take a look at std.typecons.Rebindable/std.typecons.rebindable.

"Oleg" <code.viator gmail.com> writes:

Hello. I can't find siple way to realization this behavior:

[code]
class A
{
   A parent;

   void someFunc() const { }

   void parentCall() const
   {
      const(A) cur = this;
      while( cur )
      {
        cur.someFunc();
        cur = cur.parent;
      }
   }
}
[/code]

error: cannot modify const expression cur

how create variable that store const object and can be changed to 
other const object?

"bearophile" <bearophileHUGS lycos.com> writes:

Oleg:

 how create variable that store const object and can be changed 
 to other const object?

Take a look at std.typecons.Rebindable/std.typecons.rebindable.

Read all Phobos documentation, it helps.

Bye,
bearophile