2012/11/8 Brian Budge <span dir="ltr">&lt;<a href="mailto:brian.budge@gmail.com" target="_blank">brian.budge@gmail.com</a>&gt;</span><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Hi all -<div><br></div><div>I have a case where I have a largeish inheritance hierarchy.  I will be calling an initialization function on all objects before using them in some fashion.</div><div><br></div><div>Basically what I need to happen is when I call init() on a Foo the following would occur:</div>


<div><br></div><div>void Foo::init() {</div><div>    super::init();</div><div>    // now with the knowledge that anything I inherited is set up, I can set myself up...</div><div>}</div><div><br></div><div>It is not necessary for every call to implement init, in which case the behavior should be that the call is propagated up the inheritance chain (which it is by default in C++).</div>


<div><br></div><div>In order to make this work, I need to write different code for &quot;super&quot; in every class implementation, which is a bit error prone.  Even if I don&#39;t copy/paste, my brain might be on autopilot and type something further up the inheritance chain than it should be.  Alternatively, I could require that each class provides a typedef for super, but I&#39;m still relying on myself to remember to call super&#39;s init function.</div>


<div><br></div><div>Is there anything in boost that would support this kind of hierarchy traversal (semi-)automatically?  If there is not, are there suggestions for ways to implement this in a less error-prone fashion?</div>


<div><br></div><div>Thanks,</div><div>  Brian</div>
</blockquote></div><br><div>I think the constructors in C++ work the way you want init() to work. You probably use two-step initialization, don&#39;t you? Can you avoid it?</div><div><br></div><div>Regards,</div><div>Kris</div>