Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Listing files

Posted on 2004-04-07
4
340 Views
Last Modified: 2010-04-01

I have a need to retrieve a list of files matching a search regular expression. The platform is either Visual C++ 6.0 on win32 or gcc 3.3 on Solaris 8. I understand that the solution may differ between the platforms.

Currently I'm using the system() function call to call "dir /B searchpattern > tmp.dir" or "ls -1 searchpattern > tmp.ls" and then read and delete the resulting file (e.g.: "dir /B ..\wnp*.log > tmp.dir"). However, I'm not at all satisfied with:
a: having to create a temporary file;
b: having to perform file access to get my system question anwered.

Does there exist some other mean, maybe even something like:

GetFileList(pattern, &resultContainer);

Regards,
/Bronk
0
Comment
Question by:bronkbronk
4 Comments
 
LVL 48

Assisted Solution

by:AlexFM
AlexFM earned 62 total points
ID: 10772613
In windows you can use the following functions:

FindFirstFile
FindNextFile
FindClose

0
 
LVL 16

Expert Comment

by:nonubik
ID: 10772717
0
 
LVL 12

Accepted Solution

by:
stefan73 earned 63 total points
ID: 10772870
Hi bronkbronk,
> I understand that the solution may differ between the platforms.
Depends. If you use cygwin (http://www.cygwin.com), you'll have executables on Windows which will (almost) completely use the same source. You can use gcc, awk, sed, bash... and tons of other tools.

Regarding the Solaris/cygwin solution for the directory, this would be done with opendir():

#include <sys/types.h>
#include <dirent.h>

int main(){
    DIR* dir;
    struct dirent *curr_ent;

    dir=opendir("your_dir");
    if(!dir) [error...]

    while(curr_ent=readdir(dir)){
        printf("Offset: %lld Inode: %ld File Name: %s\n",curr_ent->d_off,curr_ent->d_ino,curr_ent->d_name);
    }

    closedir(dir);
}


Cheers,
Stefan
0
 
LVL 3

Expert Comment

by:akalmani
ID: 10773444
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Often, when implementing a feature, you won't know how certain events should be handled at the point where they occur and you'd rather defer to the user of your function or class. For example, a XML parser will extract a tag from the source code, wh…
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
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 user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.

856 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