text: /* Compute sine and cosine of argument.
     Copyright (C) 1997, 1999 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
  		  Jakub Jelinek <jj@ultra.linux.cz>.
  
     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"
  
  void
  sincosq (__float128 x, __float128 *sinx, __float128 *cosx)
  {
    int64_t ix;
  
    /* High word of x. */
    GET_FLT128_MSW64 (ix, x);
  
    /* |x| ~< pi/4 */
    ix &= 0x7fffffffffffffffLL;
    if (ix <= 0x3ffe921fb54442d1LL)
      __quadmath_kernel_sincosq (x, 0.0Q, sinx, cosx, 0);
    else if (ix >= 0x7fff000000000000LL)
      {
        /* sin(Inf or NaN) is NaN */
        *sinx = *cosx = x - x;
      }
    else
      {
        /* Argument reduction needed.  */
        __float128 y[2];
        int n;
  
        n = __quadmath_rem_pio2q (x, y);
        switch (n & 3)
  	{
  	case 0:
  	  __quadmath_kernel_sincosq (y[0], y[1], sinx, cosx, 1);
  	  break;
  	case 1:
  	  __quadmath_kernel_sincosq (y[0], y[1], cosx, sinx, 1);
  	  *cosx = -*cosx;
  	  break;
  	case 2:
  	  __quadmath_kernel_sincosq (y[0], y[1], sinx, cosx, 1);
  	  *sinx = -*sinx;
  	  *cosx = -*cosx;
  	  break;
  	default:
  	  __quadmath_kernel_sincosq (y[0], y[1], cosx, sinx, 1);
  	  *sinx = -*sinx;
  	  break;
  	}
      }
  }
  