drand48.c 1.3 KB

12345678910111213141516171819202122232425262728293031323334
  1. /* Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu <mailto:drepper@gnu.ai.mit.edu>>, August 1995.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #define erand48_r __erand48_r
  17. #include <stdlib.h>
  18. /* Global state for non-reentrant functions. Defined in drand48-iter.c. */
  19. extern struct drand48_data __libc_drand48_data;
  20. double drand48 (void)
  21. {
  22. double result;
  23. erand48_r (__libc_drand48_data.__x, &__libc_drand48_data, &result);
  24. return result;
  25. }