6

Using a structure

  1. #include <stdio.h>
  2.  
  3. typedef struct {
  4.     int dd, mm, yyyy;
  5. } date;
  6.  
  7. int main( ) {
  8.     static char *monthnames[] = {
  9.         "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
  10.     };
  11.  
  12.     date d = { 25, 12, 2000 };
  13.     date *dp = &d;
  14.  
  15.     printf("%02d/%02d/%04d - ", d.dd, d.mm, d.yyyy);
  16.     printf("%d %s %d", d.dd, monthnames[d.mm-1], d.yyyy);
  17.     printf("\n");
  18.  
  19.     dp->dd = 1;
  20.     dp->mm = 1;
  21.     dp->yyyy++;
  22.  
  23.     printf("%02d/%02d/%04d - ", d.dd, d.mm, d.yyyy);
  24.     printf("%d %s %d", d.dd, monthnames[d.mm-1], d.yyyy);
  25.     printf("\n");
  26. }
$ gcc -DSTANDALONE -o adate adate.c
$ ./adate
25/12/2000 - 25 Dec 2000
01/01/2001 - 1 Jan 2001

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