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From: michiel.perdeck@tip.nl (Michiel Perdeck)
Subject: question on exceptions
Date: 1996/11/02
Message-ID: <E090uD.Kx6@tip.nl>#1/1
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sender: news@tip.nl (The News User)
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organization: CMG
reply-to: michiel.perdeck@cmg.nl
newsgroups: comp.lang.ada
Date: 1996-11-02T00:00:00+00:00
List-Id: <comp.lang.ada>


Intro:
   This is one of several questions on Ada95 after reading the "Ada
guide for C/C++ programmers" from Simon Johnston. I am a fan of Ada
and I think that much (if not most) C/C++ programs should have been
written in Ada. I have, however, not been able to use Ada as much as I
would have liked. I have split my questions over a few messages so
that reactions may be given to individual questions.

Questions:
    Unlike an exception in C++, an Ada exception cannot carry any
extra information besides it's own name. In C++ you can have an
exception of a certain class e.g. SQL_Exception, and then put a
message in an exception when it occurs. The exception handler can then
use that information to write on a log-file or the like. It seems to
me that this is a more flexible concept (exceptions as objects) than
that of Ada (exceptions as scalar types).
I hope you can convince me that I'm wrong! What do you think?

Regards,
Michiel Perdeck
Michiel Perdeck
CMG AT Finance, Amstelveen, Netherlands
michiel.perdeck@cmg.nl
michiel.perdeck@tip.nl