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  1. /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
  2. /* w_asinf.c -- float version of w_asin.c.
  3.  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
  4.  */
  5.  
  6. /*
  7.  * ====================================================
  8.  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
  9.  *
  10.  * Developed at SunPro, a Sun Microsystems, Inc. business.
  11.  * Permission to use, copy, modify, and distribute this
  12.  * software is freely granted, provided that this notice
  13.  * is preserved.
  14.  * ====================================================
  15.  */
  16.  
  17. #if defined(LIBM_SCCS) && !defined(lint)
  18. static char rcsid[] = "$Id: w_asinf.c,v 1.1 1994/08/10 20:33:34 jtc Exp $";
  19. #endif
  20.  
  21. /*
  22.  * wrapper asinf(x)
  23.  */
  24.  
  25.  
  26. #include "math.h"
  27. #include "math_private.h"
  28.  
  29.  
  30. #ifdef __STDC__
  31.         float asinf(float x)            /* wrapper asinf */
  32. #else
  33.         float asinf(x)                  /* wrapper asinf */
  34.         float x;
  35. #endif
  36. {
  37. #ifdef _IEEE_LIBM
  38.         return __ieee754_asinf(x);
  39. #else
  40.         float z;
  41.         z = __ieee754_asinf(x);
  42.         if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
  43.         if(fabsf(x)>(float)1.0) {
  44.             /* asinf(|x|>1) */
  45.             return (float)__kernel_standard((double)x,(double)x,102);
  46.         } else
  47.             return z;
  48. #endif
  49. }
  50.