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test-stddef.c
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/* Test of <stddef.h> substitute.
Copyright (C) 2009-2011 Free Software Foundation, Inc.
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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
/* Written by Eric Blake <ebb9@byu.net>, 2009. */
#include <config.h>
#include <stddef.h>
#include "verify.h"
/* Check that appropriate types are defined. */
wchar_t a = 'c';
ptrdiff_t b = 1;
size_t c = 2;
/* Check that NULL can be passed through varargs as a pointer type,
per POSIX 2008. */
verify (sizeof NULL == sizeof (void *));
/* Check that offsetof produces integer constants with correct type. */
struct d
{
char e;
char f;
};
/* Solaris 10 has a bug where offsetof is under-parenthesized, and
cannot be used as an arbitrary expression. However, since it is
unlikely to bite real code, we ignore that short-coming. */
/* verify (sizeof offsetof (struct d, e) == sizeof (size_t)); */
verify (sizeof (offsetof (struct d, e)) == sizeof (size_t));
verify (offsetof (struct d, e) < -1); /* Must be unsigned. */
verify (offsetof (struct d, f) == 1);
int
main (void)
{
return 0;
}

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