id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4820,any swaps inefficiently,jonathandodd@…,nasonov,"Apologies if this isn't a bug - I am quite new to boost, however I checked in the IRC channel and it doesn't seem like this is a total non-starter.

It seems that if you simply call swap, std::swap is called, resulting in an inefficient swapping operation. For example:

Big b1, b2;
any a1=b1, a2=b2;

swap(a1,a2);    //Calls std::swap, invokes three copy constructors

I've attached a demonstration file, which I compiled with gcc.

Seems like can be easily solved with an overloaded std::swap, but I know little about boost, so I'll leave that for the experts :)",Bugs,closed,To Be Determined,any,Boost 1.44.0,Optimization,invalid,,