what happened to the function today

Hi
I have this function, I built 2 days ago, yesrterday it was working perfectly, today not.

Code:

char *month(int months, const char *format, char *text, size_t size)
{
   time_t t;
   if ( time ( &t ) != (time_t)(-1) )
   {
      struct tm *local = localtime ( &t );
      if ( local )
      {
         local->tm_mon += months;
         t = mktime ( local );
         if ( t != (time_t)(-1) )
         {
            local = localtime ( &t );
            if ( local )
            {
               if ( strftime ( text, size, format, local ) )
               {
                  return text;
               }
            }
         }
      }
   }
   return 0;
}

I use this function to bring the file of this month, like where are in month 2, so it suppose to bring me the file of month2 daily_report_02.txt , yesterday it brought it to me but today it suppose to bring the same file as we are still in month 2, but it brought me daily_report_03.txt, WWWWWWWWWHyyyyy


notice please
one final this because I read a input file of the previous day, so the out put should be put in the same month, what I mean is if today is 1 feb so my code will read the input file of the 31/1/2006 and will put its out put in Jan (Summary_Report_01.txt).
I use this function and call it in main

Code:

( notes field contain the path)
    string outpath= field + month(-1, "Daily_Report_%d.txt", outfile, sizeof outfile) ;
ofstream outfile(outpath.c_str(), ios::out | ios::app);

please fix my error

That looks more like a C program to me...

I do not have a complier error in it,

The Function did not bring this month.

I use this function to bring the file of this month, like where are in month 2, so it suppose to bring me the file of month2 daily_report_02.txt , yesterday it brought it to me but today it suppose to bring the same file as we are still in month 2, but it brought me daily_report_03.txt,

one final this because I read a input file of the previous day, so the out put should be put in the same month, what I mean is if today is 1 feb so my code will read the input file of the 31/1/2006 and will put its out put in Jan (Summary_Report_01.txt).

can you help in fix that error, even if you suggest either to modify the function or build new one.

help it is really ergent, I do know how to fix it.

How about using the right percent character for month, rather than day then in your format string.

Hi Salem

If i got you idea right, this will be affected, by the end of the month and the begining

because I read a input file of the previous day, so the out put should be put in the same month, what I mean is if today is 1/2/2006 so my code will read the input file of the 31/1/2006 and it suppose to put its out put in Jan (Summary_Report_01.txt). even we start Feb., beacuse the file the code read is 31/01/206 so the result should be put in Summary_report_01.txt

> local->tm_mon += months;
If you want the previous day, then subtract 1 day, not one month.

thak you all I did it