1 /* e_scalbf.c -- float version of e_scalb.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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
13 * ====================================================
17 #include "math_private.h"
20 scalbf(float x, float fn)
22 if (isnan(x)||isnan(fn)) return x*fn;
24 if(fn>(float)0.0) return x*fn;
27 if (rintf(fn)!=fn) return (fn-fn)/(fn-fn);
28 if ( fn > (float)65000.0) return scalbnf(x, 65000);
29 if (-fn > (float)65000.0) return scalbnf(x,-65000);
30 return scalbnf(x,(int)fn);