RE: [boost] relational templates: need for macros eliminated

From: Darryl Green (green_at_[hidden])
Date: 2002-11-12 23:38:09

> -----Original Message-----
> From: Arkadiy Vertleyb [mailto:vertleyb_at_[hidden]] 
> After these changes, one can define a column like this:
 
> // regular
> class c1 : public column_name<column<c1, int> > {};
> 
> // calculated
> class Fn {
>     template<class Tuple> int operator()(const Tuple& tuple) {
>         ...
>     }
> };
> class c2 : public column_name<calculated_column<c2, int, Fn> {};

> 
> Fields can be accessed like this:
> 
> tuple[c1()] = 5;
> int n = tuple[c2()];

All looks very nice/expected syntax and behaviour.
I downloaded the lib, read the docs and much of the code. I haven't tried to
use it yet, though I have a very real use for it coming up soon - hopefully
around review time assuming the submision goes ahead, which I certainly hope
it does.

Regards
Darryl Green.