[boost] Re: Re: Re: Re: BIL and boost::any

From: Jonathan Turkanis (technews_at_[hidden])
Date: 2005-02-01 18:11:38

Matthew Vogt wrote:
> christopher diggins wrote:
>>> The template-based IDL will make this stuff easier.
>>
>>
>> Agreed.
>
> Is there a non-macro-based variant of the IDL in development,

Yes, but I haven't had much time to work on it. See http://tinyurl.com/6w59y.

> <snip>
>
>>>> The names that I like:
>>>>
>>>> IEmpty
>>>> IAnything
>>>> IUnknown
>>>> INull
>
> I find all of these distrurbingly reminiscent of COM interfaces...

I intended the reminiscence but not the disturbance. :-)

>> I would rather say:
>>
>> FuBar(IAnything n) {
>>  if (n.type_info() == typeid(int)) {
>>    cout << extract<int>(n);
>>  }
>> }
>>
>> Whatever, this is trivial stuff, I don't really care that much.
>
> I beg to differ, and I am sure many others will along with me :)
>
> My preference is for 'unknown', since you don't know anything about
> the type.
>
> FuBar(unknown obj) {
>    if (target_type(obj) == typeid(int)) {
>      cout << extract<int>(obj);
>    }
> }

I don't really have a preference between "anything" and "unknown", but I would
have thought the former would be less disturbing. ;-)

Jonathan