comp.lang.ada
 help / color / mirror / Atom feed
From: petter_fryklund@hotmail.com
Subject: pragma Pack does not work on GNAT 5.01a for Redhat Linux.
Date: Tue, 19 Jun 2007 06:16:53 -0700
Date: 2007-06-19T06:16:53-07:00	[thread overview]
Message-ID: <1182259013.590515.118310@g4g2000hsf.googlegroups.com> (raw)

The Size of the following record is 112 on Linux, but 104 on Solaris.

type Something is record
   A : Packed_16;
   B : Packed_8;
   C : Packed_8;
   D : Packed_8;
   E : Packed_32;
   F : Packed_32;
end record;
pragma Pack (Something);

Where

type Packed_Byte is mod 2 **8;
for Packed_Byte'Size use 8;

type Packed_Bytes is array (Natural range <>) of Packed_Byte;
for Packed_Bytes'Alignment use 1;
for Packed_Bytes'Component_Size use Packed_Byte'Size;

type Packed_8 is new Packed_Bytes (0 .. 0);
for Packed_8'Size use 8;

and similar. Why is pragma Pack ignored?

TIA
/Petter




             reply	other threads:[~2007-06-19 13:16 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-19 13:16 petter_fryklund [this message]
2007-06-19 14:02 ` pragma Pack does not work on GNAT 5.01a for Redhat Linux Georg Bauhaus
2007-06-19 14:15   ` petter_fryklund
2007-06-19 16:16 ` Jeffrey R. Carter
2007-06-19 16:23 ` Adam Beneschan
2007-06-20 15:51 ` Bob Spooner
2007-06-20 16:35   ` Adam Beneschan
2007-06-20 20:50   ` Simon Wright
2007-06-21 14:50     ` Bob Spooner
2007-06-22  5:20       ` Simon Wright
2007-06-29 10:21         ` Ole-Hjalmar Kristensen
2007-07-01 10:57           ` Simon Wright
2007-08-07 10:51             ` Ole-Hjalmar Kristensen
2007-08-10 20:36               ` Simon Wright
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox