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Diffstat (limited to 'sysdeps/generic/s_ctanhl.c')
| -rw-r--r-- | sysdeps/generic/s_ctanhl.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/sysdeps/generic/s_ctanhl.c b/sysdeps/generic/s_ctanhl.c deleted file mode 100644 index 77ca8f8717..0000000000 --- a/sysdeps/generic/s_ctanhl.c +++ /dev/null @@ -1,80 +0,0 @@ -/* Complex hyperbole tangent for long double. - Copyright (C) 1997, 2005 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 -__ctanhl (__complex__ long double x) -{ - __complex__ long double res; - - if (!isfinite (__real__ x) || !isfinite (__imag__ x)) - { - if (__isinfl (__real__ x)) - { - __real__ res = __copysignl (1.0, __real__ x); - __imag__ res = __copysignl (0.0, __imag__ x); - } - else if (__imag__ x == 0.0) - { - res = x; - } - else - { - __real__ res = __nanl (""); - __imag__ res = __nanl (""); - -#ifdef FE_INVALID - if (__isinfl (__imag__ x)) - feraiseexcept (FE_INVALID); -#endif - } - } - else - { - long double sin2ix, cos2ix; - long double den; - - __sincosl (2.0 * __imag__ x, &sin2ix, &cos2ix); - - den = (__ieee754_coshl (2.0 * __real__ x) + cos2ix); - - if (den == 0.0L) - { - __complex__ long double ez = __cexpl (x); - __complex__ long double emz = __cexpl (-x); - - res = (ez - emz) / (ez + emz); - } - else - { - __real__ res = __ieee754_sinhl (2.0 * __real__ x) / den; - __imag__ res = sin2ix / den; - } - } - - return res; -} -weak_alias (__ctanhl, ctanhl) |