[boost] Re: Formal Review Request: class optional<>

From: Vincent Finn (vincent_finn_at_[hidden])
Date: 2002-11-25 10:16:55

Fernando Cacciola wrote:
> ----- Original Message -----
> From: "Vincent Finn" <vincent_finn_at_[hidden]>
> 
>>And now the question
>>can this be used with VC6 ?
>>
> 
> Yes :-))
> I've uploaded the new version which compiles and runs properly with VC6.0

Got it, thanks :-)

But back to the other point
I think it would be nice the have an optional that could be used for 
nice function arguments
(the posts between you and Gennadiy give reaons I hadn't though of)

I agree that it can be done using pointers and wrappers but so can the 
return value, optional is a wrapper for this type of behaviour so having 
a second wrapper for an almost identical purpose seems bad :-(

Would some sort of specialisation be possible ?
or a small wrapper class to allow the other syntax while leaving the 
current (safer) version as default?

        Vin