A simple class in the marstr namespace, which has many utility functions which help in dealing with reading from and writing to files. Writing a string for example is wrapped into a convenience call which also writes down the length of the string, prior to the string itself. Likewise, the call to read a string from a file reads the length of the string first, then the string itself is read.
It comes with a number of datatypes that can be read from and written to, and should, in my opinion, cover many bases for file IO.
Have a look at fileio.h to get all details.
marstr / FileIO / summary