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
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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.

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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.


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