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Re: [g++] make_pair inlining failure?
On Tue, 29 Nov 2011, Robert Jones wrote:
On Mon, Nov 28, 2011 at 2:42 PM, Marc Glisse <marc.glisse@inria.fr> wrote:
The set of circumstances where a compiler is allowed to elide a copy is extremely restrictive.
Really... how restrictive exactly? Would you take issue with anything stated in
http://cpp-next.com/archive/2009/08/want-speed-pass-by-value/
No, that page was carefully written by a knowledgeable person so the
examples would fit right into those circumstances. And those examples are
basically the only cases where copy elision is allowed. Yes, some of us
would like to change that. Note that in C++11, you at least get a move
instead of a copy.
--
Marc Glisse