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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

Finding a file

In the previous recipe, we learned how we can use directory_iterator and recursive_directory_iterator to enumerate the content of a directory. Displaying the content of a directory, as we did in the previous recipe, is only one of the scenarios in which this is needed. The other major scenario is when searching for particular entries in a directory, such as files with a particular name, extension, and so on. In this recipe, we will demonstrate how we can use the directory iterators and the iterating patterns shown earlier to find files that match a given criterion.

Getting ready

You should read the previous recipe, Enumerating the content of a directory, for details about directory iterators. In this recipe, we will also use the same test directory structure that was presented in the previous recipe.

How to do it...

To find files that match particular criteria, use the following pattern:

  1. Use recursive_directory_iterator to iterate through...
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