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  1. /* sf_fabs.c -- float version of s_fabs.c.
  2.  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
  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. /*
  17.  * fabsf(x) returns the absolute value of x.
  18.  */
  19.  
  20. #include "fdlibm.h"
  21.  
  22. #ifdef __STDC__
  23.         float fabsf(float x)
  24. #else
  25.         float fabsf(x)
  26.         float x;
  27. #endif
  28. {
  29.         __uint32_t ix;
  30.         GET_FLOAT_WORD(ix,x);
  31.         SET_FLOAT_WORD(x,ix&0x7fffffff);
  32.         return x;
  33. }
  34.  
  35. #ifdef _DOUBLE_IS_32BITS
  36.  
  37. #ifdef __STDC__
  38.         double fabs(double x)
  39. #else
  40.         double fabs(x)
  41.         double x;
  42. #endif
  43. {
  44.         return (double) fabsf((float) x);
  45. }
  46.  
  47. #endif /* defined(_DOUBLE_IS_32BITS) */
  48.