1/*
2 *
3 *   Copyright (c) International Business Machines  Corp., 2002
4 *
5 *   This program is free software;  you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation; either version 2 of the License, or
8 *   (at your option) any later version.
9 *
10 *   This program is distributed in the hope that it will be useful,
11 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
13 *   the GNU General Public License for more details.
14 *
15 *   You should have received a copy of the GNU General Public License
16 *   along with this program;  if not, write to the Free Software
17 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20/* 01/02/2003   Port to LTP	avenkat@us.ibm.com */
21/* 06/30/2001	Port to Linux	nsharoff@us.ibm.com */
22
23/*
24 * NAME
25 *	abs -- absolute integer value
26 *
27 * CALLS
28 *	abs(3)
29 *
30 * ALGORITHM
31 *	Check with variables.  Also most neg value as listed
32 *	on man page.
33 *
34 * RESTRICTIONS
35 *	considered a long time - estimate this one
36 */
37#define _GNU_SOURCE 1
38
39#include <stdio.h>		/* needed by testhead.h         */
40#include <stdlib.h>
41#include <unistd.h>
42#include <ctype.h>
43#include <math.h>
44#include <errno.h>
45#include <values.h>
46
47/*****	LTP Port	*****/
48
49#include "test.h"
50#define FAILED 0
51#define PASSED 1
52
53char *TCID = "abs01";
54int local_flag = PASSED;
55int block_number;
56FILE *temp;
57int TST_TOTAL = 1;
58
59static void setup(void);
60static int blenter(void);
61static int blexit(void);
62
63/********************************/
64
65/*--------------------------------------------------------------*/
66int main(int argc, char *argv[])
67{
68	register long long i;
69	register int j, k, l, m;
70
71	setup();		/* temp file is now open        */
72/*--------------------------------------------------------------*/
73	blenter();
74
75	i = llabs(MININT) + (long long)MININT;
76
77	if (i != 0) {
78		fprintf(temp, "abs of minimum integer failed.");
79		local_flag = FAILED;
80	}
81
82	blexit();
83/*--------------------------------------------------------------*/
84	blenter();
85
86	i = llabs(0);
87	if (i != 0) {
88		fprintf(temp, "abs(0) failed, returned %lld\n", i);
89		local_flag = FAILED;
90	}
91
92	blexit();
93/*--------------------------------------------------------------*/
94	blenter();
95
96	for (m = 1; m >= 0; m <<= 1) {
97		j = ~m;
98		k = j + 1;
99		l = abs(k);
100		if (l != m)
101			local_flag = FAILED;
102	}
103
104	blexit();
105/*--------------------------------------------------------------*/
106/* Clean up any files created by test before call to anyfail.	*/
107
108	tst_exit();
109}
110
111/*--------------------------------------------------------------*/
112
113/*****  LTP Port	*****/
114static void setup(void)
115{
116	temp = stderr;
117}
118
119static int blenter(void)
120{
121	local_flag = PASSED;
122	return (0);
123}
124
125static int blexit(void)
126{
127	(local_flag == PASSED) ? tst_resm(TPASS,
128					  "Test passed") : tst_resm(TFAIL,
129								    "Test failed");
130	return (0);
131}
132
133/******			*****/
134