From 37da2899f40661e3e9631e497da8dc59b971cbd0 Mon Sep 17 00:00:00 2001 From: "Charles.Forsyth" Date: Fri, 22 Dec 2006 17:07:39 +0000 Subject: 20060303a --- libmath/fdlibm/s_finite.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 libmath/fdlibm/s_finite.c (limited to 'libmath/fdlibm/s_finite.c') diff --git a/libmath/fdlibm/s_finite.c b/libmath/fdlibm/s_finite.c new file mode 100644 index 00000000..52b36f45 --- /dev/null +++ b/libmath/fdlibm/s_finite.c @@ -0,0 +1,27 @@ +/* derived from /netlib/fdlibm */ + +/* @(#)s_finite.c 1.3 95/01/18 */ +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunSoft, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * finite(x) returns 1 is x is finite, else 0; + * no branching! + */ + +#include "fdlibm.h" + + int finite(double x) +{ + int hx; + hx = __HI(x); + return (unsigned)((hx&0x7fffffff)-0x7ff00000)>>31; +} -- cgit v1.2.3