1#include <stdint.h>
2#include <stdio.h>
3#include <stdlib.h>
4#include <time.h>
5
6static int
7do_test (void)
8{
9 time_t t = time (NULL);
10 int i, ret = 0;
11 double d;
12 long int l;
13 struct drand48_data data;
14 unsigned short int buf[3];
15
16 srand48 (seedval: (long int) t);
17 for (i = 0; i < 50; i++)
18 if ((d = drand48 ()) < 0.0 || d >= 1.0)
19 {
20 printf (format: "drand48 %d %g\n", i, d);
21 ret = 1;
22 }
23
24 srand48_r (seedval: (long int) t, buffer: &data);
25 for (i = 0; i < 50; i++)
26 if (drand48_r (buffer: &data, result: &d) != 0 || d < 0.0 || d >= 1.0)
27 {
28 printf (format: "drand48_r %d %g\n", i, d);
29 ret = 1;
30 }
31
32 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
33 for (i = 0; i < 50; i++)
34 if ((d = erand48 (xsubi: buf)) < 0.0 || d >= 1.0)
35 {
36 printf (format: "erand48 %d %g\n", i, d);
37 ret = 1;
38 }
39
40 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
41 for (i = 0; i < 50; i++)
42 if (erand48_r (xsubi: buf, buffer: &data, result: &d) != 0 || d < 0.0 || d >= 1.0)
43 {
44 printf (format: "erand48_r %d %g\n", i, d);
45 ret = 1;
46 }
47
48 srand48 (seedval: (long int) t);
49 for (i = 0; i < 50; i++)
50 if ((l = lrand48 ()) < 0 || l > INT32_MAX)
51 {
52 printf (format: "lrand48 %d %ld\n", i, l);
53 ret = 1;
54 }
55
56 srand48_r (seedval: (long int) t, buffer: &data);
57 for (i = 0; i < 50; i++)
58 if (lrand48_r (&data, &l) != 0 || l < 0 || l > INT32_MAX)
59 {
60 printf (format: "lrand48_r %d %ld\n", i, l);
61 ret = 1;
62 }
63
64 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
65 for (i = 0; i < 50; i++)
66 if ((l = nrand48 (xsubi: buf)) < 0 || l > INT32_MAX)
67 {
68 printf (format: "nrand48 %d %ld\n", i, l);
69 ret = 1;
70 }
71
72 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
73 for (i = 0; i < 50; i++)
74 if (nrand48_r (xsubi: buf, buffer: &data, result: &l) != 0 || l < 0 || l > INT32_MAX)
75 {
76 printf (format: "nrand48_r %d %ld\n", i, l);
77 ret = 1;
78 }
79
80 srand48 (seedval: (long int) t);
81 for (i = 0; i < 50; i++)
82 if ((l = mrand48 ()) < INT32_MIN || l > INT32_MAX)
83 {
84 printf (format: "mrand48 %d %ld\n", i, l);
85 ret = 1;
86 }
87
88 srand48_r (seedval: (long int) t, buffer: &data);
89 for (i = 0; i < 50; i++)
90 if (mrand48_r (buffer: &data, result: &l) != 0 || l < INT32_MIN || l > INT32_MAX)
91 {
92 printf (format: "mrand48_r %d %ld\n", i, l);
93 ret = 1;
94 }
95
96 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
97 for (i = 0; i < 50; i++)
98 if ((l = jrand48 (xsubi: buf)) < INT32_MIN || l > INT32_MAX)
99 {
100 printf (format: "jrand48 %d %ld\n", i, l);
101 ret = 1;
102 }
103
104 buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e;
105 for (i = 0; i < 50; i++)
106 if (jrand48_r (xsubi: buf, buffer: &data, result: &l) != 0 || l < INT32_MIN || l > INT32_MAX)
107 {
108 printf (format: "jrand48_r %d %ld\n", i, l);
109 ret = 1;
110 }
111
112 return ret;
113}
114
115#define TEST_FUNCTION do_test ()
116#include "../test-skeleton.c"
117

source code of glibc/stdlib/tst-rand48-2.c