/lib/libm/complex/catanhf.c

https://bitbucket.org/cooljeanius/dragonflybsd · C · 42 lines · 8 code · 5 blank · 29 comment · 0 complexity · 5ac50c77d7039d17ad9d58f2dc272d78 MD5 · raw file

  1. /* $NetBSD: catanhf.c,v 1.1 2007/08/20 16:01:32 drochner Exp $ */
  2. /*-
  3. * Copyright (c) 2007 The NetBSD Foundation, Inc.
  4. * All rights reserved.
  5. *
  6. * This code is derived from software written by Stephen L. Moshier.
  7. * It is redistributed by the NetBSD Foundation by permission of the author.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions
  11. * are met:
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. * 2. Redistributions in binary form must reproduce the above copyright
  15. * notice, this list of conditions and the following disclaimer in the
  16. * documentation and/or other materials provided with the distribution.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20. * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22. * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28. * POSSIBILITY OF SUCH DAMAGE.
  29. */
  30. #include <complex.h>
  31. float complex
  32. catanhf(float complex z)
  33. {
  34. float complex w;
  35. w = -1.0f * I * catanf(z * I);
  36. return w;
  37. }