Mercurial > ecos

annotate packages/language/c/libc/stdlib/current/tests/srand.c @ 115:6ed91473a1cd ecos-sw-2000-08-21

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents
children e0c0827131d1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
1 //=================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
2 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
3 // srand.c
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
4 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
5 // Testcase for C library srand()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
6 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
7 //=================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
8 //####COPYRIGHTBEGIN####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
9 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
10 // -------------------------------------------
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
11 // The contents of this file are subject to the Red Hat eCos Public License
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
12 // Version 1.1 (the "License"); you may not use this file except in
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
13 // compliance with the License. You may obtain a copy of the License at
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
14 // http://www.redhat.com/
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
15 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
16 // Software distributed under the License is distributed on an "AS IS"
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
18 // License for the specific language governing rights and limitations under
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
19 // the License.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
20 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
21 // The Original Code is eCos - Embedded Configurable Operating System,
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
22 // released September 30, 1998.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
23 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
24 // The Initial Developer of the Original Code is Red Hat.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
25 // Portions created by Red Hat are
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
27 // All Rights Reserved.
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
28 // -------------------------------------------
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
29 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
30 //####COPYRIGHTEND####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
31 //=================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
32 //#####DESCRIPTIONBEGIN####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
33 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
34 // Author(s): ctarpy, jlarmour
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
35 // Contributors:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
36 // Date: 2000-04-30
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
37 // Description: Contains testcode for C library srand() function
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
38 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
39 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
40 //####DESCRIPTIONEND####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
41
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
42 // INCLUDES
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
43
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
44 #include <stdlib.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
45 #include <cyg/infra/testcase.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
46
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
47
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
48 // CONSTANTS
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
49
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
50 // Max cross correlation value of two sequences of
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
51 // different seed
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
52 #define X_CORREL 10
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
53
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
54 // size of arrays to use for testing
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
55 #define TEST_SIZE 1024
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
56
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
57
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
58 // FUNCTIONS
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
59
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
60 static void
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
61 test( CYG_ADDRWORD data )
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
62 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
63 int ctr;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
64 static int array_1[TEST_SIZE];
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
65 static int array_2[TEST_SIZE];
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
66 static int array_3[TEST_SIZE];
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
67 int hits;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
68 int fail;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
69
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
70
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
71 srand(3);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
72 for (ctr=0; ctr<TEST_SIZE; ++ctr)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
73 array_1[ctr] = rand();
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
74
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
75 srand(9);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
76 for (ctr=0; ctr<TEST_SIZE; ++ctr)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
77 array_2[ctr] = rand();
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
78
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
79 srand(3);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
80 for (ctr=0; ctr<TEST_SIZE; ++ctr)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
81 array_3[ctr] = rand();
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
82
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
83 // Make sure arrays 1 and 3 are the same
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
84 fail = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
85 for (ctr=0; ctr<TEST_SIZE; ++ctr) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
86 if (array_1[ctr] != array_3[ctr])
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
87 ++fail;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
88 } // for
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
89
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
90 CYG_TEST_PASS_FAIL( fail == 0, "resetting the seed to the same value");
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
91
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
92 // Check sequences of different seeds are different
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
93 hits = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
94 for (ctr=0; ctr<TEST_SIZE; ++ctr) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
95 if (array_1[ctr] == array_2[ctr])
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
96 ++hits;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
97 } // for
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
98
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
99 CYG_TEST_PASS_FAIL(hits < X_CORREL,
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
100 "random sequence for different seeds is different");
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
101
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
102 CYG_TEST_FINISH("Finished tests from testcase " __FILE__ " for "
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
103 "C library srand() function");
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
104 } // test()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
105
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
106 int
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
107 main(int argc, char *argv[])
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
108 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
109 CYG_TEST_INIT();
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
110
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
111 CYG_TEST_INFO("Starting tests from testcase " __FILE__ " for C library "
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
112 "srand() function");
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
113
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
114 test(0);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
116 CYG_TEST_NA("Testing is not applicable to this configuration");
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
117 } // main()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
118
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
119
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
120
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
121 // EOF srand.c