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 <limits.h>
46
47 /***** LTP Port *****/
48
49 #include "test.h"
50 #define FAILED 0
51 #define PASSED 1
52
53 char *TCID = "abs01";
54 int local_flag = PASSED;
55 int block_number;
56 FILE *temp;
57 int TST_TOTAL = 1;
58
59 static void setup(void);
60 static int blenter(void);
61 static int blexit(void);
62
63 /********************************/
64
65 /*--------------------------------------------------------------*/
main(int argc,char * argv[])66 int 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(INT_MIN) + (long long)INT_MIN;
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 *****/
setup(void)114 static void setup(void)
115 {
116 temp = stderr;
117 }
118
blenter(void)119 static int blenter(void)
120 {
121 local_flag = PASSED;
122 return (0);
123 }
124
blexit(void)125 static 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