sysdeps/libm-ieee754/w_j0l.c

   1 /* w_j0l.c -- long double version of w_j0.c.
   2  * Conversion to long double by Ulrich Drepper,
   3  * Cygnus Support, drepper@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[] = "$NetBSD: $";
  19 #endif
  20
  21 /*
  22  * wrapper j0l(long double x), y0l(long double x)
  23  */
  24
  25 #include "math.h"
  26 #include "math_private.h"
  27
  28 #ifdef __STDC__
  29         long double __j0l(long double x)                /* wrapper j0l */
  30 #else
  31         long double __j0l(x)                            /* wrapper j0 */
  32         long double x;
  33 #endif
  34 {
  35 #ifdef _IEEE_LIBM
  36         return __ieee754_j0l(x);
  37 #else
  38         long double z = __ieee754_j0l(x);
  39         if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z;
  40         if(fabsl(x)>X_TLOSS) {
  41                 return __kernel_standard(x,x,234); /* j0(|x|>X_TLOSS) */
  42         } else
  43             return z;
  44 #endif
  45 }
  46 weak_alias (__j0l, j0l)
  47
  48 #ifdef __STDC__
  49         long double __y0l(long double x)                /* wrapper y0l */
  50 #else
  51         long double __y0l(x)                            /* wrapper y0 */
  52         long double x;
  53 #endif
  54 {
  55 #ifdef _IEEE_LIBM
  56         return __ieee754_y0l(x);
  57 #else
  58         long double z;
  59         z = __ieee754_y0l(x);
  60         if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z;
  61         if(x <= 0.0){
  62                 if(x==0.0)
  63                     /* d= -one/(x-x); */
  64                     return __kernel_standard(x,x,208);
  65                 else
  66                     /* d = zero/(x-x); */
  67                     return __kernel_standard(x,x,209);
  68         }
  69         if(x>X_TLOSS) {
  70                 return __kernel_standard(x,x,235); /* y0(x>X_TLOSS) */
  71         } else
  72             return z;
  73 #endif
  74 }
  75 weak_alias (__y0l, y0l)