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

From: Andy Little (andy_at_[hidden])
Date: 2005-08-06 06:03:34

"David Abrahams" <dave_at_[hidden]> wrote
> "Andy Little" <andy_at_[hidden]> writes:

>>      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>()

Ok I see.
Of course you can achieve this simply via one overloaded function.

bool b1 = question<std::less>(all_of(a),any_of(b) );
bool b2 = question(frobnicates,all_of(a),any_of(b) );

The use of the dummy expression  |frobnicates|  is a poor substitute for a user
defined operator.  Should C++ incorporate a facility to define ones own 
operators?

regards
Andy Little