w_ynf.c - vx32 - Local 9vx git repository for patches.
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       ---
       w_ynf.c (1330B)
       ---
            1 /* w_ynf.c -- float version of w_yn.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 #ifndef lint
           17 static char rcsid[] = "$FreeBSD: src/lib/msun/src/w_ynf.c,v 1.5 2002/05/28 18:15:04 alfred Exp $";
           18 #endif
           19 
           20 #include "math.h"
           21 #include "math_private.h"
           22 
           23 float
           24 ynf(int n, float x)        /* wrapper ynf */
           25 {
           26 #ifdef _IEEE_LIBM
           27         return __ieee754_ynf(n,x);
           28 #else
           29         float z;
           30         z = __ieee754_ynf(n,x);
           31         if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
           32         if(x <= (float)0.0){
           33                 if(x==(float)0.0)
           34                     /* d= -one/(x-x); */
           35                     return (float)__kernel_standard((double)n,(double)x,112);
           36                 else
           37                     /* d = zero/(x-x); */
           38                     return (float)__kernel_standard((double)n,(double)x,113);
           39         }
           40         if(x>(float)X_TLOSS) {
           41             /* yn(x>X_TLOSS,n) */
           42             return (float)__kernel_standard((double)n,(double)x,139);
           43         } else
           44             return z;
           45 #endif
           46 }