Re: Pointer casting related question

[Chris Vine <vine35792468 gmail com>]

On Mon, 7 Aug 2017 15:04:48 +0100
Daniel Boles <dboles src gmail com> wrote:
> On 7 August 2017 at 14:59, Chris Vine <vine35792468 gmail com> wrote:
>
> > A static cast will carry out pointer adjustment when traversing an
> > inheritance graph to account for multiple inheritance or a vtable.
> > It is reinterpret cast which will not.
> >  
>
> Indeed, thanks. I was only half-thinking at the time, and decided to
> err on the side of caution. :)
>
> I am one of the seemingly unpopular people who think it's perfectly
> fine to static_cast if you know the conversion will always be valid -
> i.e. so long as the program is not already in the process of crashing
> or failing asserts, which obviously should not be treated as
> reachable in released builds.

I agree with you.  I rarely use dynamic_cast (and I rarely use virtual
inheritance - mainly only for type erasure).  In practice you usually
know statically what your object consists of.