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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Ada Smileys in C++ lib Conversion
Date: Fri, 13 Aug 2010 17:06:08 +0200
Organization: Ada At Home
Message-ID: <op.vhdtkic3ule2fv@garhos>
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Date: 2010-08-13T17:06:08+02:00
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Le Fri, 13 Aug 2010 16:20:16 +0200, Warren <ve3wwg@gmail.com> a =C3=A9cr=
it:
> it immediately identified the value MC_CTL_LOCAL_C
> (and others) as not fitting into the Control_Type's
> valid range. In C++ a glaring error had gone
> unnoticed:
> [...]
> I'm always smiling when I convert code from C/C++ to
> Ada. In code of any significant size, Ada always
> discovers problems that went unnoticed in C/C++.

Makes me think about a recent case where I though =E2=80=9CA C/C++ compi=
ler would  =

have never caught it=E2=80=9D. This was with AdaDep, a tool from AdaLog =
(by J.P.  =

Rosen). Since the last revision of Ada, ASIS has also evolved and added =
a  =

new item in the Asis.Element_Kinds enumeration (this item is  =

An_Expression_Path). Immediately caught by Ada in AdaDep which was not  =

compiling anymore, and the same in another other little application of  =

mine.

This indeed help to feel at rest when you see such missing/oversight  =

immediately caught.


-- =

There is even better than a pragma Assert: a SPARK --# check.
--# check C and WhoKnowWhat and YouKnowWho;
--# assert Ada;
--  i.e. forget about previous premises which leads to conclusion
--  and start with new conclusion as premise.