Re: Is there a way to make a class variable visible but constant to outsiders, but changeable (mutable) to the class itself?

[Daniel N via Digitalmars-d-learn]

On Saturday, 21 May 2016 at 17:32:47 UTC, dan wrote:

Is it possible to have a class which has a variable which can be seen from the outside, but which can only be modified from the inside?

Something like:

class C {
  int my_var = 3;     // semi_const??
  void do_something() { my_var = 4; }
}

Yes, I prefer this idiom:

class C
{
  union
  {
    private      int  var_rw;
    public const(int) var_ro;
  }
}