Le C en 7 jours

#include <stdio.h>
typedef struct {
int dd, mm, yyyy;
} date;
int main( ) {
static char *monthnames[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
date d = { 25, 12, 2000 };
date *dp = &d;
printf("%02d/%02d/%04d - ", d.dd, d.mm, d.yyyy);
printf("%d %s %d", d.dd, monthnames[d.mm-1], d.yyyy);
printf("\n");
dp->dd = 1;
dp->mm = 1;
dp->yyyy++;
printf("%02d/%02d/%04d - ", d.dd, d.mm, d.yyyy);
printf("%d %s %d", d.dd, monthnames[d.mm-1], d.yyyy);
printf("\n");
}

$ gcc -DSTANDALONE -o adate adate.c
$ ./adate
25/12/2000 - 25 Dec 2000
01/01/2001 - 1 Jan 2001

frasq.org