Working with Files and Streams

One of the most important parts of the C++ standard library is the input/output (I/O), stream-based library that enables developers to work with files, memory streams, or other types of I/O devices. The first part of this chapter provides solutions to some common stream operations, such as reading and writing data, localization settings, and manipulating the input and output of a stream. The second part of the chapter explores the new C++17 filesystem library that enables developers to perform operations with the filesystem and its objects, such as files and directories.

The recipes covered in this chapter are as follows:

• Reading and writing raw data from/to binary files
• Reading and writing objects from/to binary files
• Using localized settings for streams
• Using I/O manipulators to control the output of a stream
• Using monetary I/O manipulators
• Using time I/O manipulators
• Working with filesystem paths
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