Output file streams are C++ standard library objects used to write to files.
The C++ standard library type std::ofstream is a specialized std::ostream which uses a std::filebuf to write to a file. std::ofstream is declared in fstream.
Use this tag for questions about std::ofstream or the wide-character version std::wofstream, or the class template std::basic_ofstream. For questions about file I/O in C++ the tags fstream, ifstream, filebuf and stdio might be relevant. For more general questions about output streams use the ostream or iostream tags.
