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/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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static pthread_mutex_t m;
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static pthread_barrier_t b;
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static void *
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tf (void *arg)
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{
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int e = pthread_mutex_unlock (&m);
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if (e == 0)
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{
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puts ("child: 1st mutex_unlock succeeded");
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exit (1);
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}
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else if (e != EPERM)
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{
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puts ("child: 1st mutex_unlock error != EPERM");
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exit (1);
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}
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e = pthread_mutex_trylock (&m);
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if (e == 0)
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{
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puts ("child: 1st trylock suceeded");
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exit (1);
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}
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if (e != EBUSY)
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{
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puts ("child: 1st trylock didn't return EBUSY");
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exit (1);
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}
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e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("child: 1st barrier_wait failed");
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exit (1);
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}
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e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("child: 2nd barrier_wait failed");
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exit (1);
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}
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e = pthread_mutex_unlock (&m);
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if (e == 0)
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{
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puts ("child: 2nd mutex_unlock succeeded");
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exit (1);
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}
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else if (e != EPERM)
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{
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puts ("child: 2nd mutex_unlock error != EPERM");
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exit (1);
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}
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if (pthread_mutex_trylock (&m) != 0)
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{
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puts ("child: 2nd trylock failed");
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exit (1);
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}
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if (pthread_mutex_unlock (&m) != 0)
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{
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puts ("child: 3rd mutex_unlock failed");
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exit (1);
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}
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return NULL;
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}
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static int
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do_test (void)
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{
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pthread_mutexattr_t a;
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int e;
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if (pthread_mutexattr_init (&a) != 0)
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{
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puts ("mutexattr_init failed");
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return 1;
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}
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if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0)
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{
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puts ("mutexattr_settype failed");
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return 1;
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}
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#ifdef ENABLE_PI
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if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
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{
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puts ("pthread_mutexattr_setprotocol failed");
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return 1;
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}
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#endif
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e = pthread_mutex_init (&m, &a);
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if (e != 0)
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{
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#ifdef ENABLE_PI
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if (e == ENOTSUP)
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{
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puts ("PI mutexes unsupported");
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return 0;
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}
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#endif
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puts ("mutex_init failed");
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return 1;
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}
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if (pthread_barrier_init (&b, NULL, 2) != 0)
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{
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puts ("barrier_init failed");
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return 1;
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}
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e = pthread_mutex_unlock (&m);
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if (e == 0)
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{
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puts ("1st mutex_unlock succeeded");
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return 1;
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}
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else if (e != EPERM)
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{
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puts ("1st mutex_unlock error != EPERM");
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return 1;
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}
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if (pthread_mutex_lock (&m) != 0)
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{
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puts ("mutex_lock failed");
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return 1;
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}
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e = pthread_mutex_lock (&m);
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if (e == 0)
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{
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puts ("2nd mutex_lock succeeded");
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return 1;
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}
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else if (e != EDEADLK)
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{
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puts ("2nd mutex_lock error != EDEADLK");
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return 1;
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}
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pthread_t th;
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if (pthread_create (&th, NULL, tf, NULL) != 0)
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{
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puts ("create failed");
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return 1;
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}
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e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("1st barrier_wait failed");
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return 1;
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}
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if (pthread_mutex_unlock (&m) != 0)
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{
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puts ("2nd mutex_unlock failed");
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return 1;
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}
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e = pthread_mutex_unlock (&m);
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if (e == 0)
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{
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puts ("3rd mutex_unlock succeeded");
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return 1;
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}
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else if (e != EPERM)
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{
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puts ("3rd mutex_unlock error != EPERM");
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return 1;
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}
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e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("2nd barrier_wait failed");
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return 1;
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}
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if (pthread_join (th, NULL) != 0)
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{
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puts ("join failed");
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return 1;
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}
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if (pthread_mutex_destroy (&m) != 0)
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{
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puts ("mutex_destroy failed");
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return 1;
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}
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if (pthread_barrier_destroy (&b) != 0)
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{
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puts ("barrier_destroy failed");
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return 1;
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}
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if (pthread_mutexattr_destroy (&a) != 0)
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{
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puts ("mutexattr_destroy failed");
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return 1;
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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