polyphase extern sort in c++

Hello

I have implement polyphase extern sort with c++ and I have no idea where to start. I know a little about merge extern sort (the basics) and I've been wondering if there are any c++ equivalent functions to fwrite/fread/.. ?

Does anyone have any experience with this - any help - tips/hints would be highly appreciated since there isnt a lot of available documentation about that on internet.

Many thanks in advance!

You can just use fwrite/fread in C++. Or you can open an fstream in binary mode and use its read/write methods.