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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Efficiency of code generated by Ada compilers
Date: Wed, 11 Aug 2010 01:38:37 +0200
Organization: Ada At Home
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Date: 2010-08-11T01:38:37+02:00
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Le Wed, 11 Aug 2010 01:28:25 +0200, Yannick Duch=C3=AAne (Hibou57)  =

<yannick_duchene@yahoo.fr> a =C3=A9crit:
> In =E2=80=9C11.5 Suppressing Checks=E2=80=9D:
> 4/2 pragma Suppress(identifier [, [On =3D>] name]);
Strange. I've noticed it with the reply to you : the =E2=80=9C[, [On =3D=
>] name]=E2=80=9D  =

appeared in the message while it is not visible in my reference. May be =
 =

some trouble with the HTML version I use.

So this is part of the RM.

Hey... I've just check the online version at AdaIC, it says

http://www.adaic.org/standards/05rm/html/RM-11-5.html

3/2 The forms of checking pragmas are as follows:
4/2 pragma Suppress(identifier);
4.1/2 pragma Unsuppress(identifier);

Let me guess: the reference I use is a reworked HTML version of the  =

annotated reference, where text originally marked as deleted are hidden.=
  =

So I suppose this =E2=80=9C[, [On =3D>] name]=E2=80=9D was part of an ol=
d standard and was  =

dropped with Ada 2005.

... some time later ...

Yes, got it. The ARM for Ada 95 says:

http://www.adahome.com/rm95/rm9x-11-05.html
pragma Suppress(identifier [, [On =3D>] name]);

This is no more valid Ada (well.... this is still valid Ada 95, this is =
 =

just not more valid Ada 2005/2012)

-- =

There is even better than a pragma Assert: a SPARK --# check.
--# check C and WhoKnowWhat and YouKnowWho;
--# assert Ada;
--  i.e. forget about previous premises which leads to conclusion
--  and start with new conclusion as premise.