e_scalbf.c - vx32 - Local 9vx git repository for patches.
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       ---
       e_scalbf.c (1158B)
       ---
            1 /* e_scalbf.c -- float version of e_scalb.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/e_scalbf.c,v 1.9 2004/07/09 10:01:10 das Exp $";
           18 #endif
           19 
           20 #include "math.h"
           21 #include "math_private.h"
           22 
           23 #ifdef _SCALB_INT
           24 float
           25 __ieee754_scalbf(float x, int fn)
           26 #else
           27 float
           28 __ieee754_scalbf(float x, float fn)
           29 #endif
           30 {
           31 #ifdef _SCALB_INT
           32         return scalbnf(x,fn);
           33 #else
           34         if ((isnanf)(x)||(isnanf)(fn)) return x*fn;
           35         if (!finitef(fn)) {
           36             if(fn>(float)0.0) return x*fn;
           37             else       return x/(-fn);
           38         }
           39         if (rintf(fn)!=fn) return (fn-fn)/(fn-fn);
           40         if ( fn > (float)65000.0) return scalbnf(x, 65000);
           41         if (-fn > (float)65000.0) return scalbnf(x,-65000);
           42         return scalbnf(x,(int)fn);
           43 #endif
           44 }