[rethc]

I'm trying to add a date to a to a Date struct which gets the current system from struct tm in ctime and adds days to it.

The function assumes that every month is 31 days long (to add 1 to the month) but it can have days longer than 31. How do i determine the days of each month and is there an easier way to add the date by a function call to ctime?

Heres my code:

				void enterLoanDate(int weeks)
				{
					t = time(NULL);
					timePtr = localtime(&t);
					int overflow = 0;

					for (int i = 0; i <= (weeks * 7); i++)
					{
					  dueDate.day = timePtr->tm_mday + i;
					  if (dueDate.day > 31)
						overflow++;
					}
					if (overflow > 0)
					   dueDate.month = timePtr->tm_mon + overflow;
					else
					   dueDate.month = timePtr->tm_mon;

					if(dueDate.month < timePtr->tm_mon)
					   dueDate.year = timePtr->tm_year + YR + 1;
					else
					  dueDate.year = timePtr->tm_year + YR;
                }

This post has been edited by rethc: 07 August 2012 - 06:01 AM

[Salem_c]

You can just do
timePtr->tm_mday += weeks * 7;

Then call mktime() to do all the work for you.

[rethc]

Salem_c, on 07 August 2012 - 06:13 AM, said:

You can just do
timePtr->tm_mday += weeks * 7;

Then call mktime() to do all the work for you.

Thank you, just what i was looking for