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/* Compute projection of complex __float128 value to Riemann sphere.
Copyright (C) 1997, 1999, 2010 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 "quadmath-imp.h"
__complex128
cprojq (__complex128 x)
{
if (isnanq (__real__ x) && isnanq (__imag__ x))
return x;
else if (!finiteq (__real__ x) || !finiteq (__imag__ x))
{
__complex128 res;
__real__ res = __builtin_inf ();
__imag__ res = copysignq (0.0, __imag__ x);
return res;
}
return x;
}
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