Re: Ada exceptions. unchecked?

[Wes Groleau <wesgroleau@despammed.com>]

> > I suppose it's not possible to insist that people never propagate
> > exceptions that don't make sense in their caller's world view?
> 
> When I write my code, I have _no idea_ who might be calling it, so I
> have _no idea_ what might make sense in their world view. So I throw
> exceptions, and let them decide.

To put it another way, the proper response to an exception
in a general purpose subprogram depends on what the inputs
and outputs are being used for.  No way am I going to write

  exception

     when Constraint_Error =>
        
        if Caller                     = Task_A   and
           Caller_Line_Number         = 517      and
           Item_That_Was_Out_Of_Range = First_Parameter then

            .....

:-)

-- 
Wes Groleau
http://freepages.rootsweb.com/~wgroleau