From: lutz@iks-jena.de (Lutz Donnerhacke)
Subject: Re: unconstrainted arrays
Date: Wed, 17 Oct 2001 15:35:31 +0000 (UTC)
Date: 2001-10-17T15:35:31+00:00 [thread overview]
Message-ID: <slrn9sr99u.jv.lutz@taranis.iks-jena.de> (raw)
In-Reply-To: 3BCDA15C.2976AF2@icn.siemens.de
* Alfred Hilscher wrote:
>type s (len : integer) is record
> X,Y : Integer;
> A : My_Array (1..Len);
> end record;
>
>PTs : s (10);
>
>But this would add one extra component to the record (Len). Is there a
>way to avoid this extra component ? Maybe a pragma or rep-specs? Its
>encapsulated within a package body for HW handling where the extra
>component is unwanted.
type hw_s10 is record
X,Y : Integer;
A : My_Array (1..10);
end record;
for hw_s10 use record
x at 0 range 0 .. 15;
y at 2 range 0 .. 15;
a at 4 range 0 .. 159;
end record;
If you are requireing a special layout, describe it directly. If the
discriminant occurs in the record at an other place: No problem:
type pascal_len is range 0 .. 255;
type pascal_string (len : pascal_len) is record
value : String (1 .. len);
end record;
for pascal_string use record
len at 0 range 0 .. 7;
end record;
pragma Pack (pascal_string);
next prev parent reply other threads:[~2001-10-17 15:35 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-17 15:18 unconstrainted arrays Alfred Hilscher
2001-10-17 15:35 ` Lutz Donnerhacke [this message]
2001-10-17 16:28 ` Alfred Hilscher
2001-10-18 7:42 ` Lutz Donnerhacke
2001-10-18 11:03 ` Rep spec still not possible Petter Fryklund
2001-10-18 12:44 ` Lutz Donnerhacke
2001-10-18 17:10 ` Jeffrey Carter
2001-10-19 13:52 ` Exactly the prblem, how do we make a known constant value static? Petter Fryklund
2001-10-20 0:04 ` James Rogers
2001-10-20 2:53 ` Jeffrey Carter
2001-10-22 8:11 ` We still don't know how to make a " Petter Fryklund
2001-10-17 16:09 ` unconstrainted arrays Claude SIMON
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