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Modern C++ Programming Cookbook

You're reading from   Modern C++ Programming Cookbook Master C++ core language and standard library features, with over 100 recipes, updated to C++20

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781800208988
Length 750 pages
Edition 2nd Edition
Languages
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Author (1):
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Marius Bancila Marius Bancila
Author Profile Icon Marius Bancila
Marius Bancila
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Toc

Table of Contents (16) Chapters Close

Preface Learning Modern Core Language Features Working with Numbers and Strings FREE CHAPTER Exploring Functions Preprocessing and Compilation Standard Library Containers, Algorithms, and Iterators General-Purpose Utilities Working with Files and Streams Leveraging Threading and Concurrency Robustness and Performance Implementing Patterns and Idioms Exploring Testing Frameworks C Plus Plus 20 Core Features Bibliography Other Books You May Enjoy
Index

Creating, copying, and deleting files and directories

Operations with files, such as copying, moving, and deleting, or with directories, such as creating, renaming, and deleting, are all supported by the filesystem library. Files and directories are identified using a path (which can be absolute, canonical, or relative), a topic that was covered in the previous recipes. In this recipe, we will look at what the standard functions for the previously mentioned operations are and how they work.

Getting ready

Before going forward, you should read the Working with filesystem paths recipe. The introductory notes from that recipe also apply here. However, all of the examples in this recipe are platform-independent.

For all of the following examples, we will use the following variables, and assume the current path is C:\Users\Marius\Documents on Windows and /home/marius/docs for a POSIX system:

auto err = std::error_code{};
auto basepath = fs::current_path();
auto path = basepath...
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