rvalue references in libstdc++

[Howard Hinnant]

On Apr 30, 2007, at 5:18 PM, Peter Dimov wrote:

> Howard Hinnant wrote:
>
>> When faced with this same challenge in the CodeWarrior library I had
>> good luck with the technique outlined here:
>>
>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/ 
>> n1771.html#old_move
>
> I was going to suggest the same thing... but why the second  
> overload of move? There is no use case where the argument is an  
> rvalue, right?

I believe it was just me being conservative.  I.e. move(rvalue) is  
legal in C++0X, so I was just covering my behind. ;-)  And actually  
move(const l/rvalue) is legal too in C++0X (though not very  
fulfilling).  I don't think I actually ever used it.  But if client  
code did, then it would at least compile as it would in C++0X.

-Howard