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Localtime: add a test main() function to check the output.

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This commit is contained in:
antirez 2018-07-04 13:46:27 +02:00
parent c25ee35a8b
commit 243c5a7a30
1 changed files with 15 additions and 1 deletions
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16
src/localtime.c
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@ -57,7 +57,6 @@ void nolocks_localtime(struct tm *tmp, time_t t, time_t tz, int dst) {
const time_t secs_day = 3600*24;
t -= tz; /* Adjust for timezone. */
t += 3600+dst; /* Adjust for daylight time. */
time_t days = t / secs_day; /* Days passed since epoch. */
time_t seconds = t % secs_day; /* Remaining seconds. */
@ -97,3 +96,18 @@ void nolocks_localtime(struct tm *tmp, time_t t, time_t tz, int dst) {
tmp->tm_mday = days+1; /* Add 1 since our 'days' is zero-based. */
tmp->tm_year -= 1900; /* Surprisingly tm_year is year-1900. */
}
#ifdef LOCALTIME_TEST_MAIN
#include <stdio.h>
int main(void) {
tzset();
time_t t = time(NULL);
struct tm tm;
char buf[1024];
nolocks_localtime(&tm,t,timezone,daylight);
strftime(buf,sizeof(buf),"%d %b %H:%M:%S",&tm);
printf("[timezone: %d, dl: %d] %s\n", (int)timezone, (int)daylight, buf);
}
#endif