From: Victor Porton <porton@narod.ru>
Subject: Re: Subtype or derived type?
Date: Sat, 07 Oct 2017 19:23:29 +0300
Date: 2017-10-07T19:23:29+03:00 [thread overview]
Message-ID: <orav2a$a89$1@gioia.aioe.org> (raw)
In-Reply-To: orauq5$9tv$1@gioia.aioe.org
Victor Porton wrote:
> While developing (thick object oriented) bindings for a C library:
>
> I have developed a package containing Term_Type type with bindings
> for raptor_term type:
> https://github.com/vporton/redland-bindings/blob/ada2012/ada/src/rdf-raptor-term.ads
>
> Term_Type represents pointer C type raptor_term* (where raptor_term
> is a struct).
>
> Now I am developed bindings for librdf_node which is defined as:
>
> typedef raptor_term librdf_node;
>
> Now I ask advice how to define the type representing librdf_node*
> pointer type.
>
> I have two variants in mind:
>
> 1.
>
> subtype Node_Type is Term_Type;
>
> 2.
>
> type Node_Type is new Term_Type;
>
> Please advise which of the two is better.
I am declined to use a derived type, because I may naturally have
subprograms with the same name (as the name is derived from the name of the
corresponding C function) and then using subtype, when I "use" both modules,
the names would clash.
But I am not sure.
--
Victor Porton - http://portonvictor.org
next prev parent reply other threads:[~2017-10-07 16:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-07 16:19 Subtype or derived type? Victor Porton
2017-10-07 16:23 ` Victor Porton [this message]
2017-10-07 16:24 ` Victor Porton
2017-10-09 21:50 ` Randy Brukardt
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