libm/s_remquo.c

   1 /* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
   2  *
   3  * Permission to use, copy, modify, and distribute this software
   4  * is freely granted, provided that this notice is preserved.
   5  */
   6
   7 #include "math.h"
   8 #include "math_private.h"
   9
  10 #ifdef __STDC__
  11         double remquo(double x, double y, int *quo)     /* wrapper remquo */
  12 #else
  13         double remquo(x,y,quo)                  /* wrapper remquo */
  14         double x,y;
  15         int *quo;
  16 #endif
  17 {
  18         int signx, signy, signres;
  19         int mswx;
  20         int mswy;
  21         double x_over_y;
  22
  23         GET_HIGH_WORD(mswx, x);
  24         GET_HIGH_WORD(mswy, y);
  25
  26         signx = (mswx & 0x80000000) >> 31;
  27         signy = (mswy & 0x80000000) >> 31;
  28
  29         signres = (signx ^ signy) ? -1 : 1;
  30
  31         x_over_y = fabs(x / y);
  32
  33         *quo = signres * (lrint(x_over_y) & 0x7f);
  34
  35         return remainder(x,y);
  36 }
  37 libm_hidden_def(remquo)