Re: [boost] [Re:Opaque Typedef] observations on opaque typedef

Subject: Re: [boost] [Re:Opaque Typedef] observations on opaque typedef
From: Robert Ramey (ramey_at_[hidden])
Date: 2011-10-20 14:33:04

Vicente J. Botet Escriba wrote:
> Le 20/10/11 09:43, Robert Ramey a écrit :

> there is a feature in C++11 that could respond to your needs.
>
>> struct debit :|dollar_amount
>>  {
>    using|||dollar_amount|::|||dollar_amount|;
> };
>>
>
>
> This paper
> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2141.html
> explain its relation to Opaque types.
>

Good information.

To me, you're proposal above looks quite interesting.  It also looks
to be a whole different thing than BOOST_STRONG_TYPEDEF, OPAQUE_TYPE.
And the paper above uses strong_typedef for something more akin
to you're proposal above.

It seems to be that this is a ripe subject to get sorted out and that
a boost library would be a good vehicle for doing this.  your
OPAQUE_TYPE proposal would be part of this.  We'd end
up with a couple of "things" which might or might not be
related.

Robert Ramey