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Re: [PATCH] Exploit move semantics in std::accumulate.

From: Christopher Jefferson <chris at bubblescope dot net>
To: libstdc++ at gcc dot gnu dot org
Cc: Eelis van der Weegen <eelis at eelis dot net>
Date: Sat, 8 Jan 2011 19:44:38 +0000
Subject: Re: [PATCH] Exploit move semantics in std::accumulate.
References: <iga6qn$7hk$1@dough.gmane.org> <2501F24F-A07C-434F-94FA-4DE61875686D@bubblescope.net> <alpine.DEB.2.00.1101081927270.4881@laptop-mg.saclay.inria.fr>

On 8 Jan 2011, at 18:31, Marc Glisse wrote:

> On Sat, 8 Jan 2011, Christopher Jefferson wrote:
> 
>> Your patch is a really nice idea. I'm not 100% sure it is allowed by the C++0x standard (although, I can't imagine any valid code which would possibly break it).
> 
> It has a strong smell of x=move(x); about it...

I'm not too worried about that (although perhaps I should).

My worry is that the standard explicitally says it uses " acc = acc + x " and " acc = binary_op(acc, x) ".

Chris

Follow-Ups:
- Re: [PATCH] Exploit move semantics in std::accumulate.
  - From: Eelis van der Weegen

References:
- [PATCH] Exploit move semantics in std::accumulate.
  - From: Eelis van der Weegen
- Re: [PATCH] Exploit move semantics in std::accumulate.
  - From: Christopher Jefferson
- Re: [PATCH] Exploit move semantics in std::accumulate.
  - From: Marc Glisse

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