glibc/nptl/tst-align.c

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/* Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <pthread.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
static void *
tf (void *arg)
{
bool ok = true;
puts ("in thread");
double d = 2.0;
printf ("double: %g %p %zu\n", d, &d, __alignof (double));
if ((((uintptr_t) &d) & (__alignof (double) - 1)) != 0)
ok = false;
long double ld = 3.0;
printf ("ldouble: %Lg %p %zu\n", ld, &ld, __alignof (long double));
if ((((uintptr_t) &ld) & (__alignof (long double) - 1)) != 0)
ok = false;
return ok ? NULL : (void *) -1l;
}
static int
do_test (void)
{
bool ok = true;
puts ("in main");
double d = 0.0;
printf ("double: %g %p %zu\n", d, &d, __alignof (double));
if ((((uintptr_t) &d) & (__alignof (double) - 1)) != 0)
ok = false;
long double ld = 1.0;
printf ("ldouble: %Lg %p %zu\n", ld, &ld, __alignof (long double));
if ((((uintptr_t) &ld) & (__alignof (long double) - 1)) != 0)
ok = false;
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("create failed");
return 1;
}
void *res;
if (pthread_join (th, &res) != 0)
{
puts ("join failed");
return 1;
}
if (res != NULL)
ok = false;
return ok ? 0 : 1;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"