1*ab152913Skettenis /* $OpenBSD: signbitl.c,v 1.1 2021/04/28 08:25:07 kettenis Exp $ */
2*ab152913Skettenis /*
3*ab152913Skettenis * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
4*ab152913Skettenis *
5*ab152913Skettenis * Permission to use, copy, modify, and distribute this software for any
6*ab152913Skettenis * purpose with or without fee is hereby granted, provided that the above
7*ab152913Skettenis * copyright notice and this permission notice appear in all copies.
8*ab152913Skettenis *
9*ab152913Skettenis * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10*ab152913Skettenis * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11*ab152913Skettenis * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12*ab152913Skettenis * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13*ab152913Skettenis * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14*ab152913Skettenis * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15*ab152913Skettenis * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16*ab152913Skettenis */
17*ab152913Skettenis
18*ab152913Skettenis #include <sys/types.h>
19*ab152913Skettenis #include <machine/ieee.h>
20*ab152913Skettenis #include <math.h>
21*ab152913Skettenis
22*ab152913Skettenis int
__signbitl(long double e)23*ab152913Skettenis __signbitl(long double e)
24*ab152913Skettenis {
25*ab152913Skettenis struct ieee_ext *p = (struct ieee_ext *)&e;
26*ab152913Skettenis
27*ab152913Skettenis return p->ext_sign;
28*ab152913Skettenis }
29