file open mode « File Stream « C++ Tutorial

12.5.file open mode
12.5.1.Open a file for input and read in its content
12.5.2.Open a file for appending and append
12.5.3.Open a file as binary file and get its size
12.5.4.Opening text Files for Read and Write
12.5.5.Appending to the End of a File
12.5.6.Opening files for read and write.