guile-for-guile-emacs/test-suite/standalone/test-scm-take-u8vector.c

/* Copyright (C) 2009 Free Software Foundation, Inc.
 *
 * This 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 3 of
 * the License, or (at your option) any later version.
 *
 * This 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

/* Make sure `scm_take_u8vector ()' returns a u8vector that actually uses the
   provided storage.  */


#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <libguile.h>

#include <stdlib.h>


static void *
do_test (void *result)
{
#define LEN 123
  SCM u8v;
  scm_t_uint8 *data;
  scm_t_array_handle handle;

  data = scm_malloc (LEN);
  u8v = scm_take_u8vector (data, LEN);

  scm_array_get_handle (u8v, &handle);

  if (scm_array_handle_u8_writable_elements (&handle) == data
      && scm_array_handle_u8_elements (&handle) == data)
    * (int *) result = EXIT_SUCCESS;
  else
    * (int *) result = EXIT_FAILURE;

  scm_array_handle_release (&handle);

  return NULL;
#undef LEN
}

int
main (int argc, char *argv[])
{
  int result;

  scm_with_guile (do_test, &result);

  return result;
}