Thread: closing ofstream issue

I obviously need a little help learning the logistics of ofstream. In the following code I get the error shown at bottom.
--------------------------------------------------

Code:

  ofstream outf("DrawDown.txt"); 
  if (!outf.good())
  { cerr << "Problem opening DrawDown file" << endl; "\n"; }

  outf << "This went out " << iDebugPrtCt << "\n";
  
  if (outf.fail() )
  { cerr << "Failed write DrawDown file" << endl; "\n"; }
  
  outf.close();

  ofstream outf("DrawDown.txt",  ios_base::out | ios_base::app );
-------------------------
pulls this error on compile, redeclaration of 'std::ofstream outf'

Originally Posted by Guest

On line 1 you declare a std:fstream object called outf. On line 12, you declare another object using the same name. Replacing ofstream with int, it's the equivalent of doing:

Code:

int n = 5;
int n = 11; // n already exists, can't do that.

Is there a specific thing you want to do with the call on line 12? Do you want to open a different file maybe? Or open the same file to read from it?

Sorry, I had a bit of trouble with my password app working with this forum or maybe it's FireFox ? Anyhow I was finally able to get back on.
Ok, thank you both much, I see it now, obviously I was getting a bit preoccupied with the immediate. The below works thanks to you pointing me to a different angle.

Code:

ofstream outf("DrawDown.txt"); 
  if (!outf.good())
  { cerr << "Problem opening DrawDown file" << endl; "\n"; }
 
  outf << "This went out " << iDebugPrtCt << "\n";
   
  if (outf.fail() )
  { cerr << "Failed write DrawDown file" << endl; "\n"; }
   
  outf.close();
 
  /// Took out-> ofstream outf("DrawDown.txt",  ios_base::out | ios_base::app );

  /// And put in,
  outf.open("DrawDown.txt",  ios_base::out | ios_base::app );
  outf << "This went out " << iDbugPrtCt << "\n";
  outf.close();

I have one other question if you have time, say I want to access the same file across different class functions and for loop scopes. Can I just declare the ofsteam obj globally to work around this. What implementations do you guys use or recommend for this?

Originally Posted by whiteflags

. . .< . . . . > though, consider overloading operator<< so you can just do this with some objects:

Code:

FooClass bar;
// ... ...
outf << bar << endl;

. . . . .

Wow, thanks that's definitely outside any box I was pondering, I really like that idea.

And thanks for the links.