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  1. struct date
  2. {
  3.     int month;
  4.     int day;
  5.     int year;
  6. };
  7.  
  8. /* function prototype */
  9. struct date nextDay (struct date dateval);
  10.  
  11. #include <stdio.h>
  12. int main ()
  13. {
  14.  
  15.     /* two structure variables */
  16.     struct date today, tomorrow;
  17.  
  18.     /* set today to the proper date */
  19.     today.day = 17;
  20.     today.year = 1996;
  21.     today.month = 10;
  22.  
  23.     /* This statement illustrates the ability to pass a  */
  24.     /* structure to a function and to return one as well */
  25.  
  26.     tomorrow = nextDay (today); /* tomorrow, not today, will be updated */
  27.  
  28.     printf ("%d/%d/%d\n", tomorrow.month, tomorrow.day, tomorrow.year-1900); /* Y2K Problem? */
  29.  
  30.     return (0);
  31. }
  32.  
  33. struct date nextDay (struct date dateval) /* notice the return type - struct date */
  34. {
  35.  
  36.     ++dateval.day; /* add a day, does not check for max days in the month */
  37.  
  38.     return (dateval); /* returned updated structure (all members) back to the calling function */
  39.  
  40. } /* nextDay */
Success #stdin #stdout 0s 5324KB
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10/18/96
https://ideone.com/CWRpF5
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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