inputting the date using C

im a relatively new person where C programming is concerned and im doin a bit of experimenting ..but im having a bit of a problem finding or rather coming up with a code that could be used to input the date in the format day/month/year
could anyone help me out pls??:( :( :( :(

to get time of the comp

Code:

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#include <time.h>
#include <conio.h>
#include <stdio.h>
int main()
{
int hour,min,sec;
struct time t;
do{
      gettime(&t);
      hour=t.ti_hour;
      min=t.ti_min;
      sec=t.ti_sec;
      printf("%2d:%2d:%d\r",hour,min,sec);
      }
      while(!kbhit());
      return 0;
      }

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if its wrong then the error is left in there especially for you try to find it and correct it, as i dont wont to do the whole thing for you :p

thanx but im not sure if that's what i wanted
i was looking for something with date not time

hmm check the reference the thing i just wrote down was also taken from the manual ( a piece though) so just check the lib reference for time ;-) or do a search because mayb this topic has been here before also dont forget to check the Faq's

lib reference ???

Have both :)

Code:

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#include <stdio.h>
#include <time.h>

int main(void)
{
  struct tm *newtime;
  time_t aclock;
 
  time( &aclock );               
  newtime = localtime(&aclock);
 
  printf( "date and time: %s", asctime(newtime));
 
  return 0;
}

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Quote:

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Originally posted by jeunefemme
lib reference ???

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i dont know if its standard but with my compiler Borland compiler 4.52 there's a library refernce =>as the word itself says u can check what a function returns and IMO the lib reference is very handy

>>to input the date in the format day/month/year
Do you mean you want to get the date from the user (by them typing it in)?


@ronin
Don't bother posting poor quality code like that. It contains a lot of non-standard stuff that is totally going to confuse a newbie. Also, void main???!!! :rolleyes:

This reads a date and then does simple checking to see if the date is more or less valid

Code:

---

#include <stdio.h>

int valid_date(int dd, int mm, int yy)
{
  static days[] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
  static ldays[] = {0,31,29,31,30,31,30,31,31,30,31,30,31};

  int daymax;
  int leap = yy%4 == 0 && yy%100 != 0 || yy%400 == 0;

  if (mm < 1 || mm > 12)
  {
    return 0;
  }

  daymax = (leap == 1) ? ldays[mm] : days[mm];

  if (dd < 1 || dd > daymax)
  {
    return 0;
  }

  return 1;
}

int main(void)
{
  int dd, mm, yy;
  char buf[20];

  if (fgets(buf, 20, stdin) == 0)
  {
    return 1;
  }

  if (sscanf(buf, "%d%*c%d%*c%d", &dd, &mm, &yy) != 3)
  {
    return 1;
  }

  if (valid_date(dd, mm, yy))
  {
    printf("Day -- %d\nMonth -- %d\nYear -- %d\n", dd, mm, yy);
  }

  return 0;
}

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Quote:

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Originally posted by Hammer
>>to input the date in the format day/month/year
Do you mean you want to get the date from the user (by them typing it in)?

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i want the user to type in the date and the program should display it in that format



Cela i tried your code but i dont know if im doing something wrong because after i enter the date nothing is being printed

>>i dont know if im doing something wrong because after i enter the date nothing is being printed
You didn't enter a valid date then. :-) Remember that it has to be day, then month, then year and the day has to be valid for the month which has to be between 1 and 12. Let's say I want my birthday, I would type

Code:

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% 7/1/1984

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Quote:

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Originally posted by Cela
>>i dont know if im doing something wrong because after i enter the date nothing is being printed
You didn't enter a valid date then. :-) Remember that it has to be day, then month, then year and the day has to be valid for the month which has to be between 1 and 12. Let's say I want my birthday, I would type

Code:

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% 7/1/1984

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ok will try that

Quote:

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Originally posted by Hammer
@ronin
Don't bother posting poor quality code like that. It contains a lot of non-standard stuff that is totally going to confuse a newbie. Also, void main???!!! :rolleyes:

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Done and Done. I didn't write void main though :)

Quote:

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Originally posted by jeunefemme
Cela i tried your code but i dont know if im doing something wrong because after i enter the date nothing is being printed

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Maybe you should try debugging it... or better still write your own version that you understand. No offence, but there's no point in running other people's code if you don't understand it.

As you're new, I suggest you start out slow. There's a lot in Cela's code for a newbie to get to grips with, and you've had two other very different examples. Do some research and choose a path that you understand, and post some of your code when you have trouble.