File handling in C++ on Linux/Unix platform

Posted on 2003-10-24
Last Modified: 2010-07-27
Hi everyone,

I have a bunch of file handling code that I am writing in VC++ 6.0. I am mostly using the methods defined in <io.h> such as _finddata_t structure , _chdir(), rename(), _getcwd() and alike. At sime point it might be necessary to compile the application I am coding on a Linux platform. I don't think these methods are unix compatible. I don't have any experience coding on a linux/unix platform. I need to know if there are any file handling modules that can be compatible on both platforms or a way to make minimal changes to the existing code which makes it possible to compile it on a linux platform.

Any suggestions or reference to a resource(online, books,...) is appreciated.

Question by:onlyshiza
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

Expert Comment

ID: 9615245
For the I/O itself, try sticking with the C++ library, specifically iostream and related classes.

Unfortunately, these don't address directory issues.  


Author Comment

ID: 9615317
well,  it's mostly directory manipulation like finding the name of the current directory, file names in a directory or renaming/ deleting/ saving a file.
LVL 30

Accepted Solution

Axter earned 80 total points
ID: 9615734
Most of the directory functions are available in Linux/UNIX.
However, you should remove the leading underscore when you use it in your code.

So use chdir() instead of _chdir().

chdir() will compile in Windows and Linux/UNIX, but _chdir() does not compile on Linux/UNIX.

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Author Comment

ID: 9615749
thanks Axter. How about the _finddata_t structure. Is this also supported on Linux/UNIX or is there any similar structure?
LVL 30

Expert Comment

ID: 9615901
Unfortunately, the find directory logic is not the same.  Most Linux/UNIX platforms use the type of find directory functions used in the Bordland compiler.

You'll find other directory functions like chdir, mkdir, rmdir, etc..

Assisted Solution

dhyanesh earned 40 total points
ID: 9616148

info libc

Enter this at command prompt in linux for complete documentation of all available functions.

There are sub-topics for file handling and I/O.


Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone 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

Title # Comments Views Activity
Fast access to array, using indexes, smart iterative search 2 128
C++ Language error 28 281
Path to  STL Map header file 1 81
Finding Divisors 5 40
Errors will happen. It is a fact of life for the programmer. How and when errors are detected have a great impact on quality and cost of a product. It is better to detect errors at compile time, when possible and practical. Errors that make their wa…
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…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.

726 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