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Posted on 1999-07-26
Medium Priority
Last Modified: 2010-04-15
I have an assignment for C, I have to write a program that has structures defined,the first structure is called struct date,and has int yy,mm,dd. I have to writet a function that will ask for the date in numerical format. This function must return the date (namely int yy,mm,dd) to struct date.
1. The function should be called get_date() and must not receive anything. Do have to make an integer in the function. If I do this will read as follow:scanf("%d %d %d",&yy,&mm,&dd);
and if it does how do i return this to struct date??
Question by:jonasw
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Author Comment

ID: 1263942
Edited text of question.

Author Comment

ID: 1263943
Edited text of question.

Accepted Solution

paitre earned 400 total points
ID: 1263944
1. It's kind of hard to understand your English, but I'll give it a go.  The easiest way to do this would be to have a variable of the DATE structure local to your get_date() func, and have get_date() have a retval of type DATE.


typedef struct date {
      int day, month, year;

DATE get_date( void )
      DATE today;

      scanf( "%d/%d/%d\n", &today.year, &today.month,                   & );
      return today;

int main ( int argc, char *argv[] )
      DATE today;

      printf( "Enter a date: " );
      today = get_date();

      return 1;

Code has been checked to see if it works as written, and does using egcs 1.1.2 under Linux 2.0.36.
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Expert Comment

ID: 1263945
/*Here's an example with pointers*/
#include <stdio.h>

typedef      struct      DateStruc
      int      yy; /*year */
      int      mm; /*month*/
      int      dd; /*day  */
} DateStruc;

DateStruc * get_date(void);

void main(void)
      DateStruc * xpDate=get_date();
      printf("%02d/%02d/%02d", xpDate->mm, xpDate->dd, xpDate->yy)      ;

DateStruc * get_date(void)
      static      DateStruc      xDate;
      printf("Please enter the date in the following format {mm/dd/yy}\r\n");
      scanf("%2d/%2d/%2d", &, &xDate.dd, &xDate.yy);
      return      &xDate;

Expert Comment

ID: 1263946
I thought about doing pointers, but since he was asking for a struct explanation/example, I did it that way as simply as I could :)
Pointers work well for this kind of thing, though.

Author Comment

ID: 1263947
thanks paitre

sorry about the use of my english, i was at work and was doing 101 things at the same time as well as typing the question. it is not usually that bad but i read it again now and saw what you meant. it is pretty bad.
thanks for your response, you really helped me.

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