this as lvalue?

[KennyTM~]

On Sep 4, 10 05:22, Andrei Alexandrescu wrote:
> On 9/3/10 16:03 CDT, bearophile wrote:
>> JMRyan:
>>> Is this a bug in the compiler (v.2.047)? Am I missing something in
>>> thinking it shouldn't be?
>>
>> I think it's not a bug. It's not a common need, but a method may way
>> want to swap this with another. In Phobos this is done on a struct, see:
>> http://www.dsource.org/projects/phobos/browser/trunk/phobos/std/stdio.d#L324
>>
>>
>> Bye,
>> bearophile
>
> For classes this must be an rvalue.
>
> Andrei

If 'this' is an rvalue then it is not possible to take the address 
('&this').