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From: Andrew Haley <aph@redhat.com>
To: Jason Merrill <jason@redhat.com>,
	gcc@gcc.gnu.org, Jakub Jelinek <jakub@redhat.com>
Subject: On alignment
Date: Fri, 21 Mar 2003 15:18:00 -0000	[thread overview]
Message-ID: <15995.5739.187550.62688@cuddles.cambridge.redhat.com> (raw)
In-Reply-To: <15994.60290.676217.25116@cuddles.cambridge.redhat.com>

I've beeen playing with this in an attempt to find a workaround, and
it's such a mess that I don't think it's worth it.

Consider this:

---------------------------------------------------------------------
#include <stdio.h>

class Boof
{
  int arse ()
  {
    return 25;
  }

  void *prickle;
};

class foo : Boof
{
  public: long long i;
};


int main ()
{
  foo f;
  fprintf(stderr, "offset: %d\n", (char *)&f.i - (char *)&f);
  fprintf(stderr, "alignof: %d\n", __alignof__(f.i ));
  return 0;
}
---------------------------------------------------------------------

Run it on x86, and you get:

offset: 4
alignof: 8

We can't leave it like this.

Andrew.

  reply	other threads:[~2003-03-21 13:41 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-21  0:25 Jason Merrill
2003-03-21 11:49 ` Andrew Haley
2003-03-21 15:18   ` Andrew Haley [this message]
2003-03-21 19:31   ` Tom Tromey
2003-03-21 15:39 ` Michael Matz
2003-03-21 15:41   ` Andrew Haley
2003-03-22  0:25     ` Jason Merrill
2003-03-22  9:35       ` Tom Tromey
2003-03-22 10:31       ` Andrew Haley
2003-03-25  2:52         ` Jason Merrill
2003-03-25 10:16           ` Andrew Haley
2003-03-25 16:48 Kevin B. Hendricks
2003-03-25 18:39 ` Jason Merrill
2003-03-25 18:41   ` Jason Merrill
2003-03-25 19:14     ` Kevin B. Hendricks
2003-03-25 19:57       ` Jason Merrill
2003-04-22 11:36         ` Andrew Haley
2003-04-22 12:05           ` Nathan Sidwell
2003-04-22 12:37             ` Andrew Haley
2003-04-22 13:15           ` Andreas Schwab
2003-04-23 13:32             ` Jamie Lokier
2003-04-23 16:07               ` Jason Merrill
2003-04-23 17:41               ` Tom Tromey
2003-04-23 18:06                 ` Jason Merrill
2003-04-23 18:42                   ` Tom Tromey
2003-04-23 19:13                     ` Jason Merrill
2003-04-23 19:43                       ` Gabriel Dos Reis
2003-04-23 20:23                         ` Tom Tromey
2003-04-23 21:45                           ` Gabriel Dos Reis
2003-04-24  7:00                           ` Jason Merrill
2003-04-24 11:45                             ` Andrew Haley
2003-05-01 23:50                               ` Tom Tromey
2003-05-02 13:08                                 ` Gabriel Dos Reis
2003-05-05 14:56                                   ` Jason Merrill
2003-05-08  9:58                                     ` Gabriel Dos Reis
2003-04-23 19:33                     ` Gabriel Dos Reis
2003-04-24  1:32                     ` Jamie Lokier
2003-03-25 21:27       ` Tom Tromey
2003-03-26 12:58         ` Andrew Haley
2003-03-26 22:26           ` Mark Mitchell
2003-03-25 18:57   ` Tom Tromey
2003-04-22 14:43 Robert Dewar
2003-04-22 15:13 ` Andrew Haley
2003-04-22 16:22   ` Jason Merrill
2003-04-22 16:26     ` Nicola Pero
2003-04-22 17:19       ` Andrew Haley
2003-04-22 18:46       ` Jason Merrill
2003-04-22 17:17     ` Andrew Haley
2003-04-22 17:19 Robert Dewar
2003-04-23 19:34 Joern Rennecke
2003-04-23 19:47 Robert Dewar

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