On Thu, 4 Feb 2010, Hibou57 (Yannick Duchêne) sent:

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|"[..]                                                                   |
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|AI05-0145-2 says                                                        |
|http://www.ada-auth.org/cgi-bin/cvsweb.cgi/ai05s/ai05-0145-2.txt?rev=1.4|
|> This is based on the previous alternative AI05-0145-1. The            |
|> Pre/Post aspects are specified using the aspect_specification         |
|> syntax defined in AI05-0183-1. There is no message associated         |
|> with the failure of a precondition or postcondition check: it         |
|> was deemed that these annotations are intended for verification,      |
|> and that for debugging purposes the Assert pragma is sufficient.      |
|The last sentence is the most important for you topic.                  |
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|All providing I've really understood your question                      |
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|? intended for verification, and that for debugging purposes the        |
|Assert pragma is sufficient ?                                           |
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|I was exactly feeling the opposite, [..]                                |
|[..]"                                                                   |
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I agree that no message for a failing precondition or postcondition
check is bad. A newer Ada standard does not necessitate a better
language.