Re: [boost] quince: queries in C++ expressions

Subject: Re: [boost] quince: queries in C++ expressions
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2014-07-15 08:15:50

On 15/07/14 08:04, Michael Shepanski wrote:

> 1. If you want some class to be mapped into SQL data, quince lets you
> write this sort of thing:
>
>          struct point {
>              float x;
>              float y;
>          };
>          QUINCE_MAP_CLASS(point, (x)(y))
>
>          extern database db;
>          table<point> points(db, "points");
>
> The macro QUINCE_MAP_CLASS uses a bit of Boost.Preprocessor magic and a
> bit of template metaprogramming to produce all the statically typed
> metadata that quince needs, regarding the user's type. There is no code
> generation step.

There are already macros to do this in Boost Fusion.
Why not re-use them?

Boost.Fusion is a tuple manipulation library initially developed for a 
parser generator EDSL.