Re: [boost] Two informal proposals: generate_hierarchy and embed_type

From: Beman Dawes (bdawes_at_[hidden])
Date: 2006-07-25 06:04:01

"David Bergman" <David.Bergman_at_[hidden]> wrote in message 
news:005801c6afae$a19c4060$a0da1105_at_davidtp...
> Hi,
>
> As I mentioned yesterday, I happened to stay up for a few hours and create
> two related proposals, after being inspired by Beman's 'identifier'
> suggestion (as part of his quite useful 'system-0.2' proposal.)
>
> I saw - as some people here, including Beman - a potentially wider scope 
> for
> such embeddings that quite integer-centric "database key" types.

While integers are often used as the underlying type, any type that meets a 
few common requirements (CopyConstructible, etc.) can be used. One of my 
test cases uses std::string.

I'm on a road-trip so may not get a chance to look at your stuff for a few 
days. One thing I'll look at then is to compare several common uses of 
identifier against your proposal to see if the added generality gets in the 
way of simple use cases. The other question is how important/useful are the 
other possible uses of your proposal that go beyond identifier.

Cheers,

--Beman