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From: Roland Illig <roland.illig@gmx.de>
Newsgroups: comp.lang.ada
Subject: Re: new revision ada
Date: Tue, 22 Jun 2004 04:16:34 +0200
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Date: 2004-06-22T04:16:34+02:00
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James Rogers wrote:
> tmoran@acm.org wrote in news:MxrBc.125243$3x.100303@attbi_s54:
> 
> 
>>>... and can pass more information in the
>>>exception instead of just a string).
>>
>>  I don't understand why this is considered a problem.  Why not make:
>>    type data_to_pass is record ...
>>    function enstring(x : data_to_pass) return string;
>>    function destring(s : string) return data_to_pass;
> 
> Why not consider all leaving exception messages as strings.
> Any more complex information can be encoded in the string as an
> XML message. That message can then be sent by well defined
> mechanisms from one subprogram to another, one task to another,
> and across distributed systems.

11.4.1#18 [Implementation Permissions]
The string returned by Exception_Message may be truncated (to no less 
than 200 characters) by the Save_Occurence procedure (not the function), 
the Reraise_Occurrence procedure and the re-raise statement.

You didn't want to encode an XML message in 200 characters, did you? :)

Roland