76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
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/* w_j1f.c -- float version of w_j1.c.
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#ifndef lint
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static char rcsid[] = "$Id: w_j1f.c,v 1.1 1994/08/10 20:34:39 jtc Exp $";
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#endif
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/*
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* wrapper of j1f,y1f
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*/
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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float j1f(float x) /* wrapper j1f */
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#else
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float j1f(x) /* wrapper j1f */
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float x;
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#endif
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{
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#ifdef _IEEE_LIBM
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return __ieee754_j1f(x);
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#else
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float z;
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z = __ieee754_j1f(x);
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if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
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if(fabsf(x)>(float)X_TLOSS) {
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/* j1(|x|>X_TLOSS) */
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return (float)__kernel_standard((double)x,(double)x,136);
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} else
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return z;
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#endif
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}
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#ifdef __STDC__
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float y1f(float x) /* wrapper y1f */
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#else
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float y1f(x) /* wrapper y1f */
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float x;
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#endif
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{
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#ifdef _IEEE_LIBM
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return __ieee754_y1f(x);
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#else
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float z;
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z = __ieee754_y1f(x);
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if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
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if(x <= (float)0.0){
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if(x==(float)0.0)
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/* d= -one/(x-x); */
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return (float)__kernel_standard((double)x,(double)x,110);
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else
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/* d = zero/(x-x); */
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return (float)__kernel_standard((double)x,(double)x,111);
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}
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if(x>(float)X_TLOSS) {
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/* y1(x>X_TLOSS) */
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return (float)__kernel_standard((double)x,(double)x,137);
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} else
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return z;
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#endif
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}
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