Re: [boost] rvalue ref best practices?

Subject: Re: [boost] rvalue ref best practices?
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2012-06-15 08:36:58

On 15/06/2012 06:42, Dave Abrahams wrote:
>
> on Tue Jun 12 2012, Mathias Gaunard<mathias.gaunard-AT-ens-lyon.org>  wrote:
>
>> It is not natural for something written as foo = bar(); to change foo
>> if bar fails.
>
> But you usually can't tell the difference between bar() failing and the
> assignment failing, and it's perfectly natural for a failed assignment
> to change the assignee.

I can tell perfectly fine with

T foo;

try
{
   foo = bar();
}
catch(...)
{
}

// what state is foo in now?