toolchain/gcc/newlib/libm/common/sf_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 "fdlibm.h"
   8
   9 #ifdef __STDC__
  10         float remquof(float x, float y, int *quo)       /* wrapper remquof */
  11 #else
  12         float remquof(x,y,quo)                  /* wrapper remquof */
  13         float x,y;
  14         int *quo;
  15 #endif
  16 {
  17         int signx, signy, signres;
  18         int wx;
  19         int wy;
  20         float x_over_y;
  21
  22         GET_FLOAT_WORD(wx, x);
  23         GET_FLOAT_WORD(wy, y);
  24
  25         signx = (wx & 0x80000000) >> 31;
  26         signy = (wy & 0x80000000) >> 31;
  27
  28         signres = (signx ^ signy) ? -1 : 1;
  29
  30         x_over_y = fabsf(x / y);
  31
  32         *quo = signres * (lrintf(x_over_y) & 0x7f);
  33
  34         return remainderf(x,y);
  35 }
  36
  37 #ifdef _DOUBLE_IS_32BITS
  38
  39 #ifdef __STDC__
  40         double remquo(double x, double y, int *quo)     /* wrapper remquof */
  41 #else
  42         double remquo(x,y,quo)                  /* wrapper remquof */
  43         double x,y;
  44         int *quo;
  45 #endif
  46 {
  47         return (double) remquof((float) x, (float) y, quo);
  48 }
  49
  50 #endif /* defined(_DOUBLE_IS_32BITS) */