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author | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 15:06:39 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 15:06:39 +0000 |
commit | 9d13fb2413921c713f83efe331e8e4d219c62c6b (patch) | |
tree | 2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /sysdeps/generic/s_catanhl.c | |
parent | b6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff) | |
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Moved to csu/errno-loc.c.
Diffstat (limited to 'sysdeps/generic/s_catanhl.c')
-rw-r--r-- | sysdeps/generic/s_catanhl.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/sysdeps/generic/s_catanhl.c b/sysdeps/generic/s_catanhl.c deleted file mode 100644 index c3fb0ce5ff..0000000000 --- a/sysdeps/generic/s_catanhl.c +++ /dev/null @@ -1,80 +0,0 @@ -/* Return arc hyperbole tangent for long double value. - Copyright (C) 1997, 1998 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 <math.h> - -#include "math_private.h" - - -__complex__ long double -__catanhl (__complex__ long double x) -{ - __complex__ long double res; - int rcls = fpclassify (__real__ x); - int icls = fpclassify (__imag__ x); - - if (rcls <= FP_INFINITE || icls <= FP_INFINITE) - { - if (icls == FP_INFINITE) - { - __real__ res = __copysignl (0.0, __real__ x); - __imag__ res = __copysignl (M_PI_2l, __imag__ x); - } - else if (rcls == FP_INFINITE || rcls == FP_ZERO) - { - __real__ res = __copysignl (0.0, __real__ x); - if (icls >= FP_ZERO) - __imag__ res = __copysignl (M_PI_2l, __imag__ x); - else - __imag__ res = __nanl (""); - } - else - { - __real__ res = __nanl (""); - __imag__ res = __nanl (""); - } - } - else if (rcls == FP_ZERO && icls == FP_ZERO) - { - res = x; - } - else - { - long double i2, num, den; - - i2 = __imag__ x * __imag__ x; - - num = 1.0 + __real__ x; - num = i2 + num * num; - - den = 1.0 - __real__ x; - den = i2 + den * den; - - __real__ res = 0.25 * (__ieee754_logl (num) - __ieee754_logl (den)); - - den = 1 - __real__ x * __real__ x - i2; - - __imag__ res = 0.5 * __ieee754_atan2l (2.0 * __imag__ x, den); - } - - return res; -} -weak_alias (__catanhl, catanhl) |