51 lines
866 B
C
51 lines
866 B
C
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#include <stdio.h>
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#include <time.h>
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void printTm(struct tm *ptm) {
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printf("%d-%d-%d\n", 1900 + ptm->tm_year, 1 + ptm->tm_mon, ptm->tm_mday);
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printf("%d:%d:%d\n", ptm->tm_hour, ptm->tm_min, ptm->tm_sec);
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printf("\n");
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}
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int main(void) {
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time_t t = time(NULL);
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struct tm * ptm = gmtime(&t);
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printTm(ptm);
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ptm = localtime(&t);
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printTm(ptm);
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t = mktime(ptm);
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printf("time: %lu\n", t);
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char buf[1024];
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size_t wbit = strftime(buf , sizeof(buf), "%D %T %r %Z", ptm);
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if(wbit == 0) {
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printf("strftime error\n");
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return -1;
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}
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printf("format: %s\n", buf);
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sprintf(buf, "09/04/00 1:00:00");
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strptime((const char *)buf, "%x %X", ptm);
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wbit = strftime(buf , sizeof(buf), "%D %T %r %Z", ptm);
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if(wbit == 0) {
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printf("strftime error\n");
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return -1;
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}
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printf("check format: %s\n", buf);
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return 0;
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}
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