Buffered I/O: as with C's Standard Library, IO Channels provide user-side buffering, which minimizes the number of system call invocations and ensures that I/O is performed in optimally sized units.

This shouldn't be a big deal, so I'm assuming that there might be some thing with XCode that I'm not getting, or I'm overlooking the obvious here. I have an existing minimal Cocoa application in XCode ...

On the Windows platform, the C++ language offers several ways to process a file. We'll look at four approaches for serial IO access. Reading and writing to a file is one of the most required features ...