Creat files C++

necrolin · 05-08-2006, 04:29 AM

I'm learning C++ and have encountered a problem. I want my program to be able to create new files and directories. Using fstream I can only open & write to files that already exist, which doesn't happen to be that useful.

So in point form:
Problem: How do I create new files/directories using C++
Preferably: System independant solution, something that will work in both Linux and Windows without any changes (if possible).

Thanks

Artanicus · 05-08-2006, 05:49 AM

well, about creating files, you're wrong..

Code:

// example to demonstrate it
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
   ofstream out("filethatdoesntexist.txt");
   out << "howdy" << endl;
   return 0;
}

Creating directories is a bit more complex, id say you better check out:

Code:

man 2 mkdir

There is no OS independant way to do it.. /:

necrolin · 05-08-2006, 06:01 AM

Thanks Artanicus, that did the trick. I can see where I was making a mistake in my code now.

nhydra · 05-08-2006, 06:33 AM

For creating the dirs and all manipulating action just use GNU C Library.

Here is a link about the file system interface in *unix like OSes that use GCC:

http://www.gnu.org/software/libc/man...em%20Interface

necrolin · 05-09-2006, 07:06 PM

Thanks nhydra, that's a really useful site for me.