math/w_asinf.c

   1 /* w_asinf.c -- float version of w_asin.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 #if defined(LIBM_SCCS) && !defined(lint)
  17 static char rcsid[] = "$NetBSD: w_asinf.c,v 1.3 1995/05/10 20:48:37 jtc Exp $";
  18 #endif
  19
  20 /*
  21  * wrapper asinf(x)
  22  */
  23
  24
  25 #include <math.h>
  26 #include "math_private.h"
  27
  28
  29 #ifdef __STDC__
  30         float __asinf(float x)          /* wrapper asinf */
  31 #else
  32         float __asinf(x)                        /* wrapper asinf */
  33         float x;
  34 #endif
  35 {
  36 #ifdef _IEEE_LIBM
  37         return __ieee754_asinf(x);
  38 #else
  39         float z;
  40         z = __ieee754_asinf(x);
  41         if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z;
  42         if(fabsf(x)>(float)1.0) {
  43             /* asinf(|x|>1) */
  44             return (float)__kernel_standard((double)x,(double)x,102);
  45         } else
  46             return z;
  47 #endif
  48 }
  49 weak_alias (__asinf, asinf)