C++ perform file I/O ?

Question

I know you can use a stream...but what are some other ways?

Answer 1

I only use the C subset, which requires

#include <stdio.h>

and either open() or fopen().  (The only time I use open is for a network socket, which is an integer, because the functions that use a file handle (pointer: FILE *fp;) are analogous to those that for stdin and stdout, e.g., fprintf().

For binary files, where you want to read or write a block of memory at a time, there's read() or fread() and write() or fwrite().  It never hurts to add a b after the open mode for binary I/O, but only Windows is flaky enough to require it, because their newline still includes a carriage return.