Re: [boost] [move] problem with msvc and BOOST_MOVABLE_BUT_NOT_COPYABLE

David Abrahams wrote:

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I'm talking about the BOOST_COPYABLE_AND_MOVABLE case. Most compilers won't do RVO for code written like "X X::create()".

You are claiming that some aspect of that signature causes RVO not to happen? What aspect?

I was talking about the signature, but about the way "X X::create()" was written: X X::create() { X x; return x; // passing value form static memeber-fn } The expectation that the statement "return x;" will benefit from RVO might not be justified here. Writing "return boost::move(x);" might actually be a good idea. Regards, Thomas