Input and Output

What you see is all you get.

– Brian W. Kernighan

11.1 Introduction

The I/O stream library provides formatted and unformatted buffered I/O of text and numeric values. It is extensible to support user-defined types exactly like built-in types and type safe.

The file system library provides basic facilities for manipulating files and directories.

An ostream converts typed objects to a stream of characters (bytes):

An istream converts a stream of characters ...

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