1 /* s_frexpf.c -- float version of s_frexp.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 * ====================================================
15 * $FreeBSD: head/lib/msun/src/s_frexpf.c 176451 2008-02-22 02:30:36Z das $
19 #include "math_private.h"
22 two25 = 3.3554432000e+07; /* 0x4c000000 */
25 frexpf(float x, int *eptr)
31 if(ix>=0x7f800000||(ix==0)) return x; /* 0,inf,nan */
32 if (ix<0x00800000) { /* subnormal */
38 *eptr += (ix>>23)-126;
39 hx = (hx&0x807fffff)|0x3f000000;