Re: [boost] try... catch... finally?

From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2007-04-06 16:16:24

Andrey Semashev wrote:
> For me the performance is of high concern. I expect the
> BOOST_SCOPE_EXIT performance to be comparable to a hand-written scope
> guard like that:
> 
> struct guard
> {
>   ~guard()
>   {
>     // guard body
>   }
> };

My last solution wraps scope-exit-block into a function, take an
address of this function and calls it indirectly. I don't know (yet)
if any compiler is able to optimize this call away, though.

> Another thing I expect is the guard's construction error safety. I.e.
> it may not involve things like dynamic memory allocations, TLS slot
> acquirement, etc., and should minimize copying of any user's objects.
It's very lightweight.

-- 
Alexander Nasonov
http://nasonov.blogspot.com
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