Using ofstream

[alvifarooq]

hi...

this is regarding print to a text file...i can print to a console window but when i try to print the same thing to a text file...i don't get anything in the text file after execution...

i have a class called Decision...just concerned code here...

class Decision {
friend ostream& operator<<(ostream &o, Decision &d);  // Print out the tree
Node *root;                     // The top of the decision tree
};

this is how i print out the tree structure to the console window:

// Print out the tree
ostream& operator<<(ostream &o, Decision &d)
{
   d.root->print(0);

   return o;
}

then in the main function:

Decision decision("sunburn.examples");
   
   decision.build_tree();               //to build a decision tree
   cout << decision;

   ofstream fout;                          //to write out to an output file
   fout.open ("outputfile.txt");
   fout << decision << endl;
   fout << flush;
   fout.close();

so basically cout << decision <<endl; works fine but the fout << decision bit does not print anything to the text file...

any ideas?

Farooq

[xErath]

Your answer

[Xipher]

Your answer

I would think the call to close would force the stream to flush to disk?

[alvifarooq]

hey thanks a lot...actually i figured it out...see the flushing thing doesn't affect it because i was only looking for the end result of my decision...

the problem was in my print function...i implemented the ofstream code not in the main function but in the print function of Node...

thanks a lot anyway...

Regards,

Farooq