Re: ScopeGuard Implementation

From: ye_feng (yefeng_at_[hidden])
Date: 2002-07-04 21:19:43

don't forget to make "bool dismissed_" mutable, so that dismiss() can 
change it for "typedef const scoped_guard_impl& scoped_guard"

Regards,
yefeng

--- In Boost-Users_at_y..., Jon Wang <webmaster_at_b...> wrote:
> 
> >This solution won't work, because you are storing a reference to a
> >temporary object, which will cease to exist after the constructor 
call.
> >Then the destructor is accessing memory that has already been 
destructed
> >and probably reused.
> 
> Sorry! A silly mistake here:-)
> Well, what I meant is 
> 
> typedef const scoped_guard_impl& scoped_guard;
> // not "typedef scoped_guard_impl& scoped_guard;"
> 
> Then "a const reference initialized with a temporary value makes 
that temporary value live for the lifetime of the reference itself". 
Is this fine?
> 
> 
> 				 
>   Jon