This is testpad.c in view mode; [Download] [Up]
/* Find out if we need the pad field in the header for this machine
Copyright (C) 1991 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
struct inc
{
char a[20];
char b[20];
};
struct test1
{
char a;
struct inc in[5];
};
struct test2
{
char a;
char b;
struct inc in[5];
};
void
main ()
{
struct test1 t1;
struct test2 t2;
int t1diff, t2diff;
FILE *fp = fopen ("testpad.h", "w");
if (fp == 0)
{
fprintf (stderr, "testpad: cannot open ");
fflush (stderr);
perror ("testpad.h");
exit (1);
}
t1diff = (char *) &t1.in[0] - (char *) &t1;
t2diff = (char *) &t2.in[0] - (char *) &t2;
if (t2diff == t1diff + 1)
fprintf (fp, "#define NEEDPAD\n");
else if (t1diff != t2diff)
fprintf (stderr, "Cannot determine padding for tar struct, \n\
will try with none.\n");
fclose (fp);
exit (0);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.