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-rw-r--r--sysdeps/generic/s_ctanl.c70
1 files changed, 0 insertions, 70 deletions
diff --git a/sysdeps/generic/s_ctanl.c b/sysdeps/generic/s_ctanl.c
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index fa153e9b35..0000000000
--- a/sysdeps/generic/s_ctanl.c
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-/* Complex tangent function for long double.
- Copyright (C) 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
- 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 <complex.h>
-#include <fenv.h>
-#include <math.h>
-
-#include "math_private.h"
-
-
-__complex__ long double
-__ctanl (__complex__ long double x)
-{
- __complex__ long double res;
-
- if (!isfinite (__real__ x) || !isfinite (__imag__ x))
- {
- if (__isinfl (__imag__ x))
- {
- __real__ res = __copysignl (0.0, __real__ x);
- __imag__ res = __copysignl (1.0, __imag__ x);
- }
- else if (__real__ x == 0.0)
- {
- res = x;
- }
- else
- {
- __real__ res = __nanl ("");
- __imag__ res = __nanl ("");
-
-#ifdef FE_INVALID
- if (__isinfl (__real__ x))
- feraiseexcept (FE_INVALID);
-#endif
- }
- }
- else
- {
- long double sin2rx, cos2rx;
- long double den;
-
- __sincosl (2.0 * __real__ x, &sin2rx, &cos2rx);
-
- den = cos2rx + __ieee754_coshl (2.0 * __imag__ x);
-
- __real__ res = sin2rx / den;
- __imag__ res = __ieee754_sinhl (2.0 * __imag__ x) / den;
- }
-
- return res;
-}
-weak_alias (__ctanl, ctanl)