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From: "Mike.McNett" <michael.mcnett@usma.edu>
Newsgroups: comp.lang.ada
Subject: Re: Abstract Interface - Assertion Error
Date: Fri, 19 Oct 2007 03:52:52 -0700
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Date: 2007-10-19T03:52:52-07:00
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On Oct 18, 6:48 pm, Georg Bauhaus <rm.tsoh+bauh...@maps.futureapps.de>
wrote:
> On Thu, 2007-10-18 at 11:03 -0700, Mike.McNett wrote:
> > I am having a problem with creating one Interface, then an Abstract
> > type that implements that interface, and a concrete type from the
> > Abstract one.  When I don't use the interface, all is good.  When the
> > Abstract type is based on the Interface Type, however, I get a
> > "System.Assertions.Assert_Failur" runtime exception.  Here's the basic
> > code:
>
> > In Graph_Interface package, I define Type Graph_Interface_Type is
> > Interface;
>
> > In Abstract_Graph package, I define Type Abstract_Graph_Type is
> > ABSTRACT NEW Graph_Interface.Graph_Interface_Type with Private;
>
> > In my Matrix_Graph package, I define Type Matrix_Graph_Type is new
> > Abstract_Graph_Type With Private;
>
> > Using the above, everything compiles but I get the assertion error.
> > When I change the Abstract_Graph_Type so that it is just Abstract and
> > doesn't implement the interface, all is good.
>
> > Any ideas / thoughts?
>
> > Thanks,
> > Mike
>
> Trying to construe sources as good I can from your hints, I get
>
> georg@K72:~/News$ gnatmake -v -gnat05 graph_interface.ads
>
> Which compiler/version are you using?- Hide quoted text -
>

We are running 3.4.6 for GNAT GPL 2006.

Mike