1#include <stdlib.h>
2#include <time.h>
3#include <string.h>
4#include <stdio.h>
5
6struct {
7 const char * env;
8 time_t expected;
9} tests[] = {
10 {"MST", 832935315},
11 {"", 832910115},
12 {":UTC", 832910115},
13 {"UTC", 832910115},
14 {"UTC0", 832910115}
15};
16
17
18int
19main (int argc, char ** argv)
20{
21 int errors = 0;
22 struct tm tm;
23 time_t t;
24 unsigned int i;
25
26 memset (s: &tm, c: 0, n: sizeof (tm));
27 tm.tm_isdst = 0;
28 tm.tm_year = 96; /* years since 1900 */
29 tm.tm_mon = 4;
30 tm.tm_mday = 24;
31 tm.tm_hour = 3;
32 tm.tm_min = 55;
33 tm.tm_sec = 15;
34
35 for (i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
36 {
37 setenv (name: "TZ", value: tests[i].env, replace: 1);
38 t = mktime (tp: &tm);
39 if (t != tests[i].expected)
40 {
41 printf (format: "%s: flunked test %u (expected %lu, got %lu)\n",
42 argv[0], i, (long) tests[i].expected, (long) t);
43 ++errors;
44 }
45 }
46 if (errors == 0)
47 {
48 puts (s: "No errors.");
49 return EXIT_SUCCESS;
50 }
51 else
52 {
53 printf (format: "%d errors.\n", errors);
54 return EXIT_FAILURE;
55 }
56}
57

source code of glibc/timezone/test-tz.c