mirror of git://gcc.gnu.org/git/gcc.git
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* Return arc hyperbolic sine for a complex float type.
|
|
Copyright (C) 1997-2018 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#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, __imag__ x);
|
|
else
|
|
__imag__ res = nanq ("");
|
|
}
|
|
else
|
|
{
|
|
__real__ res = nanq ("");
|
|
__imag__ res = nanq ("");
|
|
}
|
|
}
|
|
else if (rcls == QUADFP_ZERO && icls == QUADFP_ZERO)
|
|
{
|
|
res = x;
|
|
}
|
|
else
|
|
{
|
|
res = __quadmath_kernel_casinhq (x, 0);
|
|
}
|
|
|
|
return res;
|
|
}
|