Question about ofstream & ifstream in Ubuntu

[caoyuan9642]

Hello.

I use Eclipse C/C++ in Ubuntu 10.04 to develope my program.

but I found it different to operate files in Linux from in WindowsXP.

here is part of my code:

p1.h:

class ABC{
//......
public:
  static ofstream fout;
  static void f();
//......
};

p1.cpp:
#include "p1.h"
ofstream ABC::fout;

void ABC::f{
  fout<<"test\n";
}

main.cpp:
#include "p1.h"
void main(){
  fout.open("a.out");
  ABC::f();
  fout.close();
}

and then the problem occurs:
1.it won't automatically create a new file named a.out.
2.if I manually create it, it'll be still empty after run this program.

I am confused about this.

In WindowsXP it works well but in Ubuntu10.04 problems occurs.

Hope some one can help me.

Thanks.

[kfmfe04]

There really is no need to use Eclipse unless you want to.

In any *nix environment, the command-line (plus an editor like vim or emacs or ed) is your IDE!

Just type in your favorite shell:

gcc -o my_a_out pl.cpp main.cpp -lstdc++

Of course, if it gets more complicated, you will want to use gnu make or some other build/dependency system.