Solved

Retrieving current week number

Posted on 2001-08-07
4
455 Views
Last Modified: 2008-02-01
Hi,

I want to be able to retrieve the week number of the current date. I looked all over the MSDN help, MSDN online, and even Borland's help, but no luck. Somehow the developers of Win32 and those of VCL didn't think anyone would ever need a week number or something, cause there seem to be no functions for it. All that the date/time functions will give me is day/month/year/minutes/hours/seconds etc, not weeks. I was wondering if there was a function for it or something, either in Win32 or VCL (not in MFC, I'm not allowed to use MFC here).

Thanks in advance,


Paul
0
Comment
Question by:mgdPaul
  • 2
4 Comments
 
LVL 2

Expert Comment

by:Lockias
ID: 6359936
I see from your question that you know how to get the number of days. Assume this is in nDays. Then:
int nWeeks = (int) (nDays / 7) + (nDays % 7);

~Lockias
0
 
LVL 5

Expert Comment

by:proskig
ID: 6359943
The easiest way is to use tm_yday member of tm structure.
tm_yday/7 shall give you week number (could be that you need to add 1).
0
 
LVL 2

Accepted Solution

by:
Lockias earned 100 total points
ID: 6359965
Oops!

 int nWeeks = (int) (nDays / 7);
 int nDayInWeek (nDays % 7);

 You are in the <nDayInWeek> day of the <nWeeks> week.

~Lockias
0
 

Author Comment

by:mgdPaul
ID: 6360009
Thanks!
I take it that there aren't any 'standard' functions or anything for this? I find working with dates and times a true hell in C/C++ .... there are dozens of functions and structures to choose from, and the help leaves it up to you to figure out why you should choose one above the other.
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
This article shows you how to optimize memory allocations in C++ using placement new. Applicable especially to usecases dealing with creation of large number of objects. A brief on problem: Lets take example problem for simplicity: - I have a G…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question