I stumbled on the following code, and as I understand it, it shows a const rvalue reference. What is the use of such a construct, and what do it gain over a normal const lvalue reference?
void foo(const bar&& b);
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It's not even comparable to a "normal const lvalue reference". It does something different. – Kerrek SB Jul 14 '13 at 22:26
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In short: basically none. – Andy Prowl Jul 14 '13 at 22:29