1 /* s_rintf.c -- float version of s_rint.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
4 /* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>. */
7 * ====================================================
8 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
10 * Developed at SunPro, a Sun Microsystems, Inc. business.
11 * Permission to use, copy, modify, and distribute this
12 * software is freely granted, provided that this notice
14 * ====================================================
20 #include "math_private.h"
28 8.3886080000e+06, /* 0x4b000000 */
29 -8.3886080000e+06, /* 0xcb000000 */
33 float __nearbyintf(float x)
45 j0 = ((i0>>23)&0xff)-0x7f;
48 if((i0&0x7fffffff)==0) return x;
51 i0 |= ((i1|-i1)>>9)&0x400000;
58 SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31));
62 if((i0&i)==0) return x; /* x is integral */
64 if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0);
67 if(j0==0x80) return x+x; /* inf or NaN */
68 else return x; /* x is integral */
77 weak_alias (__nearbyintf, nearbyintf)