Re: [boost] Interest for a perl6-like-junctions-class?

From: David Abrahams (dave_at_[hidden])
Date: 2005-08-05 16:07:36

"Andy Little" <andy_at_[hidden]> writes:

> "David Abrahams" <dave_at_[hidden]> wrote 
>> Rob Stewart <stewart_at_[hidden]> writes:
>
>>>>   all_of(a)._(frobnicates, any_of(b))
>>>> 
>>>>   all_of(a)._,frobnicates, any_of(b)
>>>> 
>>>>   all_of(a)._ %frobnicates%  any_of(b)
>>>> 
>>>>   all_of(a)._ |frobnicates|  any_of(b)
>>>> 
>>>>   all_of(a)._ <frobnicates>  any_of(b)
>
>>>    all_of(a)(frobnicates, any_of(b))
>
> Yuck and Yuck FWIW. AFAIK only prefix user defined operations work in C++.
>
>      if ( frobnicates(all_of(a), any_of(b))) {

You can't do that unless you ask people to put smarts about all_of and
any_of inside of frobnicates.  The goal is to use a general predicate
such as std::less<int>()

>         frazzle(a);
>     }else{
>         frazzle(b);
>     }
>
> At least until  user defined operators are allowed:
>  
>  frazzle a  if  all_of  a  frobnicates  any_of  b 
>     else frazzle b;
>
> But till then keep it simple please !

No can do, boss.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com