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Date: Mon, 11 Mar 2013 13:43:23 -0700 (PDT)
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Subject: Re: Is this expected behavior or not
From: Anh Vo <anhvofrcaus@gmail.com>
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Date: 2013-03-11T13:43:23-07:00
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On Monday, March 11, 2013 1:01:04 PM UTC-7, Robert A Duff wrote:
>> Anh Vo <anhvofrcaus@gmail.com> writes:=20
>> I have read ARM section 3.2.4, Subtype Predicates, I did not see any=20
>> rules prohibiting from using attribute 'Succ as contained in the code=20
>> nipet below. I would expect Prime'Succ (3) return 5 for next prime=20
>> number. However, 4 is returned instead. Is this a correct behavior?=20

>It is standard-conforming behavior. Prime'Succ is the same as Prime'Base'S=
ucc. >Many other attributes behave the same way. This has been true since A=
da 83. >For example, Prime'Succ(1000) =3D 1001, and does not raise an excep=
tion. >Positive'Image (-10) =3D "-10".=20

Thank you for your clarification. My next question is that should ARM menti=
on some thing of that effect regarding subtype predicates.