[boost] Re: [bug]: optional<T> fails on self-assignment

From: David Abrahams (dave_at_[hidden])
Date: 2005-02-15 23:10:05

"Joe Gottman" <jgottman_at_[hidden]> writes:

>
>    I disagree.  This may ensure the basic exception-safety guarantee, but 
> most code that uses optional<T> will use T::operator=() at some point or 
> other.  So if T::operator=() is not exception-safe

Whoa, here we go again!  You seem to be assuming

  basic exception-safety guarantee == "not exception-safe."

That's just not true for any reasonable definition of
"exception-safe."

Or am I misunderstanding you?

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com