From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libquadmath/math/casinhq.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 libquadmath/math/casinhq.c (limited to 'libquadmath/math/casinhq.c') diff --git a/libquadmath/math/casinhq.c b/libquadmath/math/casinhq.c new file mode 100644 index 000000000..ffa45fa81 --- /dev/null +++ b/libquadmath/math/casinhq.c @@ -0,0 +1,78 @@ +/* Return arc hyperbole sine for __float128 value. + Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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 "quadmath-imp.h" + + +__complex128 +casinhq (__complex128 x) +{ + __complex128 res; + int rcls = fpclassifyq (__real__ x); + int icls = fpclassifyq (__imag__ x); + + if (rcls <= QUADFP_INFINITE || icls <= QUADFP_INFINITE) + { + if (icls == QUADFP_INFINITE) + { + __real__ res = copysignq (HUGE_VALQ, __real__ x); + + if (rcls == QUADFP_NAN) + __imag__ res = nanq (""); + else + __imag__ res = copysignq (rcls >= QUADFP_ZERO ? M_PI_2q : M_PI_4q, + __imag__ x); + } + else if (rcls <= QUADFP_INFINITE) + { + __real__ res = __real__ x; + if ((rcls == QUADFP_INFINITE && icls >= QUADFP_ZERO) + || (rcls == QUADFP_NAN && icls == QUADFP_ZERO)) + __imag__ res = copysignq (0.0, __imag__ x); + else + __imag__ res = nanq (""); + } + else + { + __real__ res = nanq (""); + __imag__ res = nanq (""); + } + } + else if (rcls == QUADFP_ZERO && icls == QUADFP_ZERO) + { + res = x; + } + else + { + __complex128 y; + + __real__ y = (__real__ x - __imag__ x) * (__real__ x + __imag__ x) + 1.0; + __imag__ y = 2.0 * __real__ x * __imag__ x; + + y = csqrtq (y); + + __real__ y += __real__ x; + __imag__ y += __imag__ x; + + res = clogq (y); + } + + return res; +} -- cgit v1.2.3