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Subject: Re: [boost] [interprocess] Compile problem with 1.39 and trunk
From: OvermindDL1 (overminddl1_at_[hidden])
Date: 2009-08-26 17:54:33

On Wed, Aug 26, 2009 at 11:09 AM, Mathias
Gaunard<mathias.gaunard_at_[hidden]> wrote:
> Thomas Klimpel wrote:
>> The article explains "copy elision" and RVO, and hence explains why taking
>> argument by value is closely related to rvalue-ness.
> Saying that perfect forwarding doesn't work because the compiler can't do an
> optional copy elision anymore when you forward a value seems a bit
> far-fatched, especially since the pattern where you can exploit it is quite
> specific. (I've never found a reason to pass arguments by value outside of
> the assignment operator)
>> So it shows why the statement "..., but since C++03 can't officially
>> detect rvalue-ness anyway that's irrelevant" is not the complete truth.
> Notice the "officially" in the sentence.

Actually Boost.Fusion states how you can use it to create the
pseudo-perfect forwarding that the exponential number of overloads
supplies, but without creating the exponential number of overloads, I
have used that method for my RPC system, works excellently.
Boost.Fusion is great!

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