Re: ADA Exception Handling

[Robert A Duff <bobduff@world.std.com>]

"Corey Ashford" <corey@remove.these.four.words.rational.com> writes:

> For example, in C++, an exception can be reraised from outside the exception
> handler (a.k.a catch block) - for example in a function which is
> called by the handler.  This
> isn't possible in Ada.

It is possible in Ada, using exception occurrences and the
Ada.Exceptions package.

I agree that for the most part, Ada and C++ exceptions are more-or-less
the same.

I'd say the biggest difference between Ada and C++ exceptions is that
C++ allows you to add information to an exception occurrence in a
type-safe way; that is, you declare that information at the point of the
exception *type*, and the raising and handling have to agree.  You can
add information in Ada, too, but it's not type-safe -- you must encode
the information as a String.  Sigh.

- Bob
-- 
Change robert to bob to get my real email address.  Sorry.