GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libm/src/s_fmaxf.c Lines: 0 9 0.0 %
Date: 2017-11-13 Branches: 0 8 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: s_fmaxf.c,v 1.3 2013/11/12 18:28:02 martynas Exp $	*/
2
/*-
3
 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 * 1. Redistributions of source code must retain the above copyright
10
 *    notice, this list of conditions and the following disclaimer.
11
 * 2. Redistributions in binary form must reproduce the above copyright
12
 *    notice, this list of conditions and the following disclaimer in the
13
 *    documentation and/or other materials provided with the distribution.
14
 *
15
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25
 * SUCH DAMAGE.
26
 */
27
28
#include <math.h>
29
30
float
31
fmaxf(float x, float y)
32
{
33
	/* Check for NaNs to avoid raising spurious exceptions. */
34
	if (isnan(x))
35
		return (y);
36
	if (isnan(y))
37
		return (x);
38
39
	/* Handle comparisons of signed zeroes. */
40
	if (signbit(x) != signbit(y)) {
41
		if (signbit(x))
42
			return (y);
43
		else
44
			return (x);
45
	}
46
47
	return (x > y ? x : y);
48
}