ios problem!

[9wX36Up4]

#include<iostream>
#include<fstream>

using namespace std;

main(){
       short a;
      
      fstream Kaynak;
      Kaynak.open("Kaynak.txt",ios::in|ios::trunc|ios::out);
      if(Kaynak.is_open()){
          cout<<"Success!";
          for(a=1;a<=36;a++){
              Kaynak<<a;
              if(a==36){a=1;}
              }
          }
      else
          cout<<"Fail!";
      Kaynak.close();
      return 0;
}

I have a problem with this. It is writing a's value to Source.txt then i want it to overwrite the next value of a.
I don't know what to do.

[hamsterman]

You want to make an infinite loop which sets the contents of a file to a number from 1 to 36 ?
open and close the file inside the loop, or use seekp (though I have a feeling that if the file contained 36 and you wanted to write 1 in it, the result would be 16. If that happens, write a ' ' to clear that second number. I honestly don't know how to erase things from a file..).

By the way,
I'd ask why would you want to do that, but for some reason I'm afraid of the answer. Is this really what you need?

[9wX36Up4]

yes this is what i need i want to make a good dice program(u already know rand() is not good )
is there something u afraid and i dont know how to clear

[9wX36Up4]

So anybody answer me?

[hamsterman]

rand is as good as you could possibly need.
Is your idea that you'll open the file and you'll find a random number in it?
You don't need a file.. Try

cout << "press enter when you feel like it";
cin.get();
cout << "a random number is " << clock()%36+1;

Of course, put it in main and #include <ctime>.

[9wX36Up4]

thanks it solved all my problems