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From: Preben Randhol <randhol+abuse@pvv.org>
Newsgroups: comp.lang.ada
Subject: Re: Whether to raise exception or End_of_List function
Date: Fri, 23 Nov 2001 14:37:17 +0000 (UTC)
Organization: Norwegian university of science and technology
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On Thu, 22 Nov 2001 03:53:15 -0000, Nick Roberts wrote:
> Much better, eh? If more detailed diagnostics are required, one can always
> use Ada.Exceptions and provide extra information in the Message parameter
> when calling the Raise_Exception procedure.

Actually Raise_Exception isn't necessarily needed as I see now. If I use it
my exception looks like this:

   Exception name: LISTS.WORDGROUPS_LIST.OUT_OF_LIST_BOUNDARY
   Message: End of List already reached. No next Node exists.

but if I simply use raise:

   Exception name: LISTS.WORDGROUPS_LIST.OUT_OF_LIST_BOUNDARY
   Message: double_linked_list.adb:80 instantiated at lists.ads:6

but in other circumstances it makes sense as long as one do not use the
same message at all the places where the exception can be raised.

Preben
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