Re: Order of base-class constructor calls

[Regan Heath]

On Fri, 07 Oct 2011 23:02:33 +0100, Andrej Mitrovic  
<andrej.mitrov...@gmail.com> wrote:
So I'm looking for some techniques or tricks (or, dare I say, design
patterns :x) you guys might have if you've ever ran into this kind of
problem.

The best I can come up with is a runtime solution:

import std.stdio;

class Base {
    private bool _init = false;
    this(int x) { _init = true; }
    void foo()
    {
        if (_init) writefln("ok");
        else writefln("not initialised");
    }
}

class DerivedWell : Base {
    this(int x) {
        super(x);
        foo();
    }
}

class DerivedBadly : Base {
    this(int x) {
        foo();
        super(x);
    }
}

void main()
{
    auto d1 = new DerivedWell(1);
    auto d2 = new DerivedBadly(1);
}

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