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Date: Thu, 9 Jun 2022 01:21:29 -0700 (PDT)
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Subject: Re: Extra information in the message string of exceptions.
From: Robin Vowels <robin.vowels@gmail.com>
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On Monday, June 6, 2022 at 11:02:25 PM UTC+10, roda...@gmail.com wrote:
> Hi all, 
> 
> Any thoughts on pro's/con's of having the Ada standard packages 
> runtime provide extra information in the message string of exceptions ? 
> 
> For instance, a Constraint_Error message might provide details on 
> the variable name, the legal range and the erroneous value which caused 
> the exception. 
.
PL/I provides a description of an error, e.g. mentioning the condition
that has been raised, e.g., SUBSCRIPTRANGE, ZERODIVIDE.
The user can then take control and print the value of a variable or values of any
group of variables.  E.g., for a SUBSCRIPTRANGE error, the user can also print the
upper and lower bounds of the array, though this is usually not done,
it being sufficient to print the name of the variable(s) and value(s).