loop date range

hello, I need to loop the days within a date range. Not sure where to begin.

startDate: 01/01/1960
endDate: 02/06/2011

how do I convert the date into a number so I can loop?

Thanks

I would use ctime; but, I am a C programmer; there might be a newer C++ library.
ctime (time.h) - C++ Reference

Tim S.

hey, I've found this piece of code, and have been playing around with it. But it seems like I cant have a date less than 1970.... Now I'm stuck again

Code:

   struct tm one = {0}, two = {0};

   one.tm_year = 71;    /* years since 1900 */
   one.tm_mon  = 0 - 1; /* months are 0 - 11 */
   one.tm_mday = 1;

   two.tm_year = 92;    /* years since 1900 */ 
   two.tm_mon  = 4 - 1; /* months are 0 - 11 */
   two.tm_mday = 3;
   
   time_t startTime = mktime(&one), endTime = mktime(&two);
   
   cout << (startTime / (60 * 60 * 24));

I would recommend creating a Date class with a member function NextDay(). The function could increment the date in the correct manner.

Example:

Code:

class Date
{
public:
    Date(int month, int day, int year);
    void NextDay();
    int day;        // you might want to use accessors/mutators instead. But this class is rather simple.
    int month;
    int year;
};
...
int main()
{
    ...
    Date start(1, 1, 1960);
    Date end(2, 7, 2011);  // One past the end.
    for(; start!=end; start.NextDay())
        // Print your date here
}

Or you could come up with your own numeric representation for dates. For example you could says dates are represented by number of days elapsed since 1900. Then write a conversion function to take DD/MM/YY to that representation (and back, for printing).

Using a Date class as suggested will probably yield nicer looking code where you use dates (and it is certainly the more C++ approach), but might be more work upfront depending on how much you want to do with dates. For example, in the "Date" snippet posted above, you'd need to implement operator!= .