file pointer « File Stream « C++ Tutorial

12.6.file pointer
12.6.1.change file at given position
12.6.2.get file content at given position
12.6.3.Change a file at specific position
12.6.4.Check ofstream current marker position
12.6.5.move to position 2 in the stream and output a 0 in position 2
12.6.6.Tell the current position and Skip
12.6.8.Test File Position
12.6.9.Seek 0 to reset the file pointer

12.6.10.seekg( ) moves the pointer offset number of characters from the specified origin
12.6.11.uses both seekp( ) and seekg( ) to reverse the first characters in a file.
12.6.12.Detecting EOF