Why doesn't this code work? The if statement is always turning out to be true.
Code:#include <iostream> #include <fstream> using namespace std; int main() { fstream file; char name[33]; cout << "Enter the name of the file you wish to open" << endl; cin.getline(name, 33); file.open(name); if (file.fail()) cout << "Unable to open file" << endl; file.close(); return 0; }
Thow a file.clear( ) before the open( ) statement.
Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah
You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie
What does the clear() member function specifically do? I'm guessing it clears stuff.
file.clear(); didn't work.
I have another question about files: when should you use ifstream, ofstream and fstream? I simply use fstream all the time.
ifstream is for input operations on files
ofstream is for output operations.
i think, thats how i remember it being at least. i havent used streams in a while.
http://www.cplusplus.com/ref/iostream/ios/fail.html
is it supposed to fail? try adding this before the if statement to see what happens
cout << file.fail() << endl;
file.open( name, ios::out )
Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah
You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie
cout << file.fail() << endl; made it display 1.
Thanks XSquared. That worked. I thought adding the mode the file is to be opened is optional, though.
I think it assumes that the file must exist unless you use an ofstream or specify ios:ut.
Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah
You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie
