Solved

hope this easy

Posted on 2003-12-11
2
312 Views
Last Modified: 2012-08-13
i am importing images from a directory and sub dirs into our software for processing.
my code is as follows
it all works great with no problems.
but i would like to be able to sort the directory by file date.
is there a call to do this?   or
will i have to create arrays and sort the array?

thank you.


int hDir = _findfirsti64(getimgdir,&dirinfo);
  wsprintf(getname, "%s\\*.tif",Td.ImgDir);
  int dirloop = 0;
  if(hDir>-1){
    do{
      int hFile = _findfirsti64(getname,&fileinfo );
      int ret = 0;
      if(hFile>-1){
        do{
          if(strlen(dirinfo.name)<3 && dirloop==0){////////////////check root for tiffs
            wsprintf(getimage.getimg,"%s\\%s",Td.ImgDir,fileinfo.name);
          }else{
            wsprintf(getimage.getimg,"%s\\%s\\%s",Td.ImgDir,dirinfo.name,fileinfo.name);
          }
         /////////////////////////////do calls for processing images                  
         ret = _findnexti64(hFile, &fileinfo );
        }while(ret ==0);
      }
/////////////////////////////find next folder and loop again.
            
0
Comment
Question by:jafrazee
2 Comments
 
LVL 44

Accepted Solution

by:
Karl Heinz Kremer earned 50 total points
ID: 9920360
I would read the file names into a map<time_t, string>, with the key being the time the file was last modified. You can get this time by calling _stat on the file:


#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <map>

using namespace std;

int result;
struct _stat buf;
map<time_t, string> timeMap;
...

   result = _stat( "your_file_name", &buf );

   if (result != 0 )
   {
      ... handle the error ...
   }
   else
   {
      // add to the map:
      timeMap[&buf.st_atime] = your_file_name;
   }
}

Once all the data is collected, you just iterate over the map and have the file names in the order they were modified. If you need the reverse order, just use a reverse_iterator.
0
 
LVL 9

Expert Comment

by:tinchos
ID: 10356304
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Accept: khkremer {http:#9920360}

Please leave any comments here within the next four days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

Tinchos
EE Cleanup Volunteer
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
Template syntax for variable length arrays 9 71
Compile GLUT with Visual Studio 2015 1 108
How to gracefully close the c++ 11 thread? 3 83
White board coding practice 3 80
What is C++ STL?: STL stands for Standard Template Library and is a part of standard C++ libraries. It contains many useful data structures (containers) and algorithms, which can spare you a lot of the time. Today we will look at the STL Vector. …
C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.

920 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