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From: milouz <a.michelizza@gmail.com>
Newsgroups: comp.lang.ada
Subject: best practice: error handling
Date: Tue, 31 May 2011 07:01:19 -0700 (PDT)
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Date: 2011-05-31T07:01:19-07:00
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Hi,

I'm wondering about the best way to handle errors in Ada when calling
a function/procedure that may fails.

For example, when programming on Unix systems in C, the called
functions usually return a zero or positive value on success and -1 on
failure, while setting a global variable (errno) to give some
informations about the failure.

What's the best way to deal with that kind of error in Ada ?
Throwing an exception ? Returning some error code ? Passing a special
parameter ?...