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Diffstat (limited to 'math/s_cacoshl.c')
| -rw-r--r-- | math/s_cacoshl.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/math/s_cacoshl.c b/math/s_cacoshl.c deleted file mode 100644 index da23c8d8aa..0000000000 --- a/math/s_cacoshl.c +++ /dev/null @@ -1,91 +0,0 @@ -/* Return arc hyperbole cosine for long double value. - Copyright (C) 1997, 1998, 2006 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> - - -__complex__ long double -__cacoshl (__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 = HUGE_VALL; - - if (rcls == FP_NAN) - __imag__ res = __nanl (""); - else - __imag__ res = __copysignl ((rcls == FP_INFINITE - ? (__real__ x < 0.0 - ? M_PIl - M_PI_4l : M_PI_4l) - : M_PI_2l), __imag__ x); - } - else if (rcls == FP_INFINITE) - { - __real__ res = HUGE_VALL; - - if (icls >= FP_ZERO) - __imag__ res = __copysignl (signbit (__real__ x) ? M_PIl : 0.0, - __imag__ x); - else - __imag__ res = __nanl (""); - } - else - { - __real__ res = __nanl (""); - __imag__ res = __nanl (""); - } - } - else if (rcls == FP_ZERO && icls == FP_ZERO) - { - __real__ res = 0.0; - __imag__ res = __copysignl (M_PI_2l, __imag__ x); - } - else - { - __complex__ long double y; - - __real__ y = (__real__ x - __imag__ x) * (__real__ x + __imag__ x) - 1.0; - __imag__ y = 2.0 * __real__ x * __imag__ x; - - y = __csqrtl (y); - - if (__real__ x < 0.0) - y = -y; - - __real__ y += __real__ x; - __imag__ y += __imag__ x; - - res = __clogl (y); - - /* We have to use the positive branch. */ - if (__real__ res < 0.0) - res = -res; - } - - return res; -} -weak_alias (__cacoshl, cacoshl) |