xref: /dflybsd-src/contrib/tcpdump/fptype.c (revision 59c07fbdf8168fa08c76c515186d561b5a92690c)
1*ed775ee7SAntonio Huete Jimenez /*
2*ed775ee7SAntonio Huete Jimenez  * Copyright (c) 1982, 1986, 1993
3*ed775ee7SAntonio Huete Jimenez  *	The Regents of the University of California.  All rights reserved.
4*ed775ee7SAntonio Huete Jimenez  *
5*ed775ee7SAntonio Huete Jimenez  * Redistribution and use in source and binary forms, with or without
6*ed775ee7SAntonio Huete Jimenez  * modification, are permitted provided that the following conditions
7*ed775ee7SAntonio Huete Jimenez  * are met:
8*ed775ee7SAntonio Huete Jimenez  * 1. Redistributions of source code must retain the above copyright
9*ed775ee7SAntonio Huete Jimenez  *    notice, this list of conditions and the following disclaimer.
10*ed775ee7SAntonio Huete Jimenez  * 2. Redistributions in binary form must reproduce the above copyright
11*ed775ee7SAntonio Huete Jimenez  *    notice, this list of conditions and the following disclaimer in the
12*ed775ee7SAntonio Huete Jimenez  *    documentation and/or other materials provided with the distribution.
13*ed775ee7SAntonio Huete Jimenez  * 3. All advertising materials mentioning features or use of this software
14*ed775ee7SAntonio Huete Jimenez  *    must display the following acknowledgement:
15*ed775ee7SAntonio Huete Jimenez  *	This product includes software developed by the University of
16*ed775ee7SAntonio Huete Jimenez  *	California, Berkeley and its contributors.
17*ed775ee7SAntonio Huete Jimenez  * 4. Neither the name of the University nor the names of its contributors
18*ed775ee7SAntonio Huete Jimenez  *    may be used to endorse or promote products derived from this software
19*ed775ee7SAntonio Huete Jimenez  *    without specific prior written permission.
20*ed775ee7SAntonio Huete Jimenez  *
21*ed775ee7SAntonio Huete Jimenez  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22*ed775ee7SAntonio Huete Jimenez  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*ed775ee7SAntonio Huete Jimenez  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*ed775ee7SAntonio Huete Jimenez  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25*ed775ee7SAntonio Huete Jimenez  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*ed775ee7SAntonio Huete Jimenez  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*ed775ee7SAntonio Huete Jimenez  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*ed775ee7SAntonio Huete Jimenez  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*ed775ee7SAntonio Huete Jimenez  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*ed775ee7SAntonio Huete Jimenez  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*ed775ee7SAntonio Huete Jimenez  * SUCH DAMAGE.
32*ed775ee7SAntonio Huete Jimenez  */
33*ed775ee7SAntonio Huete Jimenez 
34*ed775ee7SAntonio Huete Jimenez #include <stdio.h>
35*ed775ee7SAntonio Huete Jimenez 
36*ed775ee7SAntonio Huete Jimenez #include "netdissect-stdinc.h"
37*ed775ee7SAntonio Huete Jimenez 
38*ed775ee7SAntonio Huete Jimenez #include "fptype.h"
39*ed775ee7SAntonio Huete Jimenez 
40*ed775ee7SAntonio Huete Jimenez void
float_type_check(uint32_t in)41*ed775ee7SAntonio Huete Jimenez float_type_check(uint32_t in)
42*ed775ee7SAntonio Huete Jimenez {
43*ed775ee7SAntonio Huete Jimenez 	union { /* int to float conversion buffer */
44*ed775ee7SAntonio Huete Jimenez 		float f;
45*ed775ee7SAntonio Huete Jimenez 		uint32_t i;
46*ed775ee7SAntonio Huete Jimenez 	} f;
47*ed775ee7SAntonio Huete Jimenez 
48*ed775ee7SAntonio Huete Jimenez 	f.i = in;
49*ed775ee7SAntonio Huete Jimenez 	printf("%.3f\n", f.f*8/1000000);
50*ed775ee7SAntonio Huete Jimenez }
51