C++ ofstream can't open file from variable name (not even after using c_str())

Question

In my code I am trying to create a file and write to it:

std::ofstream saveFile("file.txt");
ofstream << "test" << endl;

Works perfectly! But,

std::string fileName = "file.txt"
std::ofstream saveFile(filename.c_str());
ofstream << "test" << endl;

I've tried with and without c_str(), with no luck. There are no errors. But ofstream.good() returns false.

Answer 1

It should work. But do you really post the right code?

At least your code has several obvious syntax errors:

std::string fileName = "file.txt"; // no semicolon
std::ofstream saveFile(fileName.c_str()); // 'fileName' rather than 'filename'
saveFile << "test" << endl; // don't redirect "test" to std::ofstream
// std::ofstream is a class rather than an instance

Please refer to fstream for more detailed information.