Subject: Re: [boost] rvalue ref best practices?
From: Dave Abrahams (dave_at_[hidden])
Date: 2012-06-15 11:59:53
on Fri Jun 15 2012, Mathias Gaunard <mathias.gaunard-AT-ens-lyon.org> wrote:
> 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;
> foo = bar();
1. How can you tell whether bar failed or the assignment failed, here?
2. Do you really write code like that?
> // what state is foo in now?
Exactly my question.
-- Dave Abrahams BoostPro Computing http://www.boostpro.com
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