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How to add 6 months to a date? [message #36699]

Tue, 26 June 2012 19:21

lectus
Messages: 329
Registered: September 2006
Location: Brazil

Senior Member

Hello!
I'm trying to understand U++ Date type and how to do arithmetic with it.
How can I add 6 months to a date? Can you give me a short example?

Thanks

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Re: How to add 6 months to a date? [message #36701 is a reply to message #36699]

Tue, 26 June 2012 21:50

BioBytes
Messages: 307
Registered: October 2008
Location: France

Senior Member

Hi Lectus,

Perhaps you can try this link

http://www.ultimatepp.org/examples$Days$en-us.html

The code example shows how to calculate the number of days between 2 dates. So you can transpose to add 6 months to a given date.

Hope this is helpful
____________________________
Cheers

Biobytes

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Re: How to add 6 months to a date? [message #36702 is a reply to message #36701]

Tue, 26 June 2012 22:34

lectus
Messages: 329
Registered: September 2006
Location: Brazil

Senior Member

Thanks.

I was playing with U++ Date type and editdate and calendar controls and realized U++ is smart enough to know when a month has 28 or 30 or 31 days.

For example, what I expected I get with the code below:

Date d = cal1.GetDate(); //read date
	d += (30 * 6); // add 6 months: 30 days * 6
	cal2.SetDate(d); // write to the other calendar

That's the behavior I wanted.

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Re: How to add 6 months to a date? [message #36725 is a reply to message #36702]

Fri, 29 June 2012 09:05

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

lectus wrote on Tue, 26 June 2012 16:34

Thanks.

I was playing with U++ Date type and editdate and calendar controls and realized U++ is smart enough to know when a month has 28 or 30 or 31 days.

Not correct. Use:

Date AddMonths(Date date, int months);
Date AddYears(Date date, int years);

Mirek

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