Re: [boost] [core] A better boost::swap

On Monday 29 December 2014 05:22:29 Rob Stewart wrote:

On December 28, 2014 1:42:54 PM EST, Pete Bartlett wrote:

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I'm sure Antony meant to change the implementation to match the ideas

in Ion's code, not use the test implementation he showed.

But isn't the whole idea to depend on Boost.Move so that swap can benefit from move emulation? As Peter said, a new Boost.Swap could depend on Move, but Core should not.

It could be implemented based upon C++11 move semantics, when available. If there were a way to detect and use Boost.Move without requiring a reference to it, that would be ideal, of course.

The whole idea of using Boost.Move swap is to make use of move emulation in C++03. std::swap in C++11 already uses move constructors, so Boost.Core swap automatically uses move constructors through std::swap.