My "Fully Buffered" fstream wrapper class -- Comments Please

[nonzenze]

Hi all,

Here is my wrapper class for ofstream. I would greatly appreciate any comments and suggestions. Even more importantly, if I've just reinvented the wheel, please point me towards the original, because it's almost certainly better than my version.

Specification:
* Must not write to file until explicitly flush() ed.
* Must support both formatted << and unformatted write(ptr, size) operations.
* Should expose an ostream object to be passed to functions
---> All my objects have a WriteBinary(ofstream&) member function that would otherwise have to be overloaded to accept Output& as well
* Should perform reasonably well

http://pastebin.com/m7272cbf0

Thanks in advance!

~Oren