To use the things described here, #include the <fstream> library.
ofstream out(path);
| ofstream is a type. This statement creates an ofstream object called out that writes to the file described by string path. |
out << x;
| Do with an open ofstream object all of the same things that you can do with cout. |
out.close()
| Use this to close file out when you are done writing to it. |