libquadmath/math/copysignq.c

   1 /* copysignq.c -- __float128 version of s_copysign.c.
   2  * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
   3  */
   4
   5 /*
   6  * ====================================================
   7  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
   8  *
   9  * Developed at SunPro, a Sun Microsystems, Inc. business.
  10  * Permission to use, copy, modify, and distribute this
  11  * software is freely granted, provided that this notice
  12  * is preserved.
  13  * ====================================================
  14  */
  15
  16 #include "quadmath-imp.h"
  17
  18 __float128
  19 copysignq (__float128 x, __float128 y)
  20 {
  21   uint64_t hx,hy;
  22   GET_FLT128_MSW64(hx,x);
  23   GET_FLT128_MSW64(hy,y);
  24   SET_FLT128_MSW64(x,(hx&0x7fffffffffffffffULL)|(hy&0x8000000000000000ULL));
  25   return x;
  26 }