Is returning by rvalue reference more efficient?

Posted by Neil G on Stack Overflow See other posts from Stack Overflow or by Neil G
Published on 2009-07-12T18:44:43Z Indexed on 2010/04/29 8:27 UTC
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for example:

Beta_ab&&
Beta::toAB() const {
    return move(Beta_ab(1, 1));
}

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