1 /* s_rintf.c -- float version of s_rint.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 * $NetBSD: s_rintf.c,v 1.9 2008/04/25 22:21:53 christos Exp $
19 #include "math_private.h"
23 8.3886080000e+06, /* 0x4b000000 */
24 -8.3886080000e+06, /* 0xcb000000 */
32 #ifdef __i386__ /* XXX gcc4 will omit the rounding otherwise */
39 jj0 = ((i0>>23)&0xff)-0x7f;
42 if((i0&0x7fffffff)==0) return x;
45 i0 |= ((i1|-i1)>>9)&0x400000;
50 SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
53 i = (0x007fffff)>>jj0;
54 if((i0&i)==0) return x; /* x is integral */
56 if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>jj0);
59 if(jj0==0x80) return x+x; /* inf or NaN */
60 else return x; /* x is integral */