Re: [Boost-users] [function] Boost.Function won't compile under Borland DevStudio 2006

Subject: Re: [Boost-users] [function] Boost.Function won't compile under Borland DevStudio 2006
From: Fábio 'Petrucio' Stange (petrucio_at_[hidden])
Date: 2010-04-13 16:32:00

> Well the initial error appears to just be instancing problem.  Might
> put a static bool set to false on init, test it after the fact, and if
> false set it to true and also set the struct above it, that incurs
> obvious overhead, and as stated, there might be more problems as well.
>   
Yes, that was the first thing that ocurred to me; the problem is, how 
the heck do I initialize vtable_type? I don't know what's really inside 
it, and I've taken a beating trying to follow up it's declarations, it's 
quite nasty.

      static bool _vtable_init = false;
      static vtable_type stored_vtable;
      if (!_vtable_init) {
        stored_vtable // ????????? What now?
        _vtable_init = true;
      }

> Obviously need to customize them for each type of callback you will
> need, and there are *much* better ways to do this, more reusable, and
> faster, but that requires decent template support (unsure how well
> that compiler works), and you pretty much end up remaking boost
> function/bind anyway. 
>   
It has half-decent (hmmn) template support, I use it infrequently but I 
do use it, and boost::shared_ptr and the likes frequently, they work 
fine. But adding more code to maintain, specially templated, is the last 
thing I want to do now, so I'll stick with the static function pointers 
if I can't get function_template.hpp to compile.

Anyway, thanks *a lot* for the time you've taken to answer me so far.