Re: [Boost-users] Scope exit with no capture

Subject: Re: [Boost-users] Scope exit with no capture
From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2011-11-23 16:34:50

Bruno Martinez wrote:
> I also found
> http://lists.boost.org/Archives/boost/2009/03/149540.php which
> includes a patch to support zero arguments, but it wasn't ever
> merged.  It seems scope exit is abandoned.

Not abandoned but carefully looked after. Scroll down the post
you're refering to to this line:
> #define this(x) (this(x)) 

Check the code in
http://lists.boost.org/Archives/boost/2009/05/151353.php
Do we want to go that far?

Also, there are some limitations (a) "this" must be first in a
capture list and (b) there is no way you can use "this" inside
a body if you use C++03 compiler.

So, rather than raising a learning curve for no clear benefit,
I prefer being explicit and write:

        YourClass *this_ = this; BOOST_SCOPE_EXIT((this_)...
or
        YourClass& self = *this; BOOST_SCOPE_EXIT((self)...

Alex