Solved

How do I determine week number in a month?

Posted on 2007-11-19
3
556 Views
Last Modified: 2013-12-26
Hello,

I have a batch job that I am writing that is scheduled to be run every Tuesday throughout the year.  
I have a huge file that I am ftp'ing to another machine but I am dividing it up into 4 files.
The first Tuesday of the month will write all of the data to these four files and ftp the first file to
the other machine.The second, third, and fourth(last) Tuesday of the month will ftp the other files.

Now I need to determine what Tuesday in the month I am in.  So if it is the first Tuesday of the month, I need it to do some calculation and if it is the 2nd, 3rd, 4th Tuesday then my job will do something else.  I know there are circumstances where there are 5 Tuesdays in a month but I need to ignore that in my code.  Can someone provide me with the code or ideas to do this?

Thanks in advance!
0
Comment
Question by:farekat
  • 2
3 Comments
 
LVL 53

Expert Comment

by:Infinity08
ID: 20312335
Use struct tm :

You can easily detect whether a day is tuesday or not using the tm_wday field.
The day of the month can be found in tm_mday (note the first tuesday will have a tm_mday value <= 7, the second tuesday a value between 8 and 14, etc.).


So, something like :

#include <time.h>
 

time_t now;

struct tm *nowtm = 0;
 

time(&now);

nowtm = localtime(&now);
 

if (nowtm->tm_wday == 2) {  /* tueasday */

  if (nowtm->tm_mday <= 7) {

    /* first tuesday of the month */

  }

  else if (nowtm->tm_mday <= 14) {

    /* second tuesday of the month */

  }

  else if (nowtm->tm_mday <= 21) {

    /* third tuesday of the month */

  }

  else if (nowtm->tm_mday <= 28) {

    /* fourth tuesday of the month */

  }

}

Open in new window

0
 

Author Comment

by:farekat
ID: 20313225
Would taking the actual date in the month (i.e. today = 19) and dividing it by 7+1 (using integers) give me the week number too?  Is there situations where that won't work?
0
 
LVL 53

Accepted Solution

by:
Infinity08 earned 500 total points
ID: 20314004
if dom is the day of the month (1 ... 31) :

        ((dom - 1) / 7) + 1

would give you the week number (1, 2, etc.), assuming that / is integer division.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
ShiftLeft challenge 21 76
wordappend challenge 8 143
Trying to run powershell  in a batch file. How do I do this? 8 65
WiFi Router device supports GPON! 3 29
If you use Adobe Reader X it is possible you can't open OLE PDF documents in the standard. The reason is the 'save box mode' in adobe reader X. Many people think the protected Mode of adobe reader x is only to stop the write access. But this fe…
Have you ever been frustrated by having to click seven times in order to retrieve a small bit of information from the web, always the same seven clicks, scrolling down and down until you reach your target? When you know the benefits of the command l…
The goal of this video is to provide viewers with basic examples to understand recursion in the C programming language.
The goal of this video is to provide viewers with basic examples to understand how to create, access, and change arrays in the C programming language.

914 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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now