[boost] Re: Perfect Forwarding (almost)

From: Rani Sharoni (rani_sharoni_at_[hidden])
Date: 2004-02-11 04:51:03

David Abrahams wrote:
> "Rani Sharoni" <rani_sharoni_at_[hidden]> writes:
>
>> David Abrahams wrote:
>>> I think the actual problem is one of either interpretation of
>>> 8.5.3/5
>>> or overspecification in that very paragraph.  If, instead of saying,
>>>
>>>    "A temporary of type ``cv1 T2'' [sic] is created, and a
>>>    constructor is called to copy the entire rvalue object into the
>>>    temporary. The reference is bound to the temporary or to a
>>>    sub-object within the temporary"
>>>
>>> It said:
>>>
>>>    "A temporary of type ``cv1 T2'' [sic] is constructed using direct
>>>    initialization from the rvalue object. The reference is bound to
>>>    the temporary or to a sub-object within the temporary"
>>>
>>> we'd be home free.
>>
>> I'm not sure.
>> When source and destinations un-cv types are the same or
>> base/derived direct initialization and copy initialization are the
>> same (per 8.5/14/4/2) and this fact was (viciously) exploited by the
>> old auto_ptr.
>
> Something's missing from that sentence to make it comprehensible.
>
> It has the same grammatical structure as "When my hand is blue or my
> hair is green and I was a fool", which is not a complete sentence.

I'm not sure that I understand your intention.

Thanks,

Rani