Finding a file

In the previous recipe, we saw 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 where this is needed. The other major scenario is searching for particular entries in a directory, such as files with a particular name, extension, and so on. In this recipe, we will see how we can use the directory iterators and the iterating patterns shown earlier to find files that match a given criteria.

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 presented in the previous recipe.

How to do it...

To find files that match particular criteria, use the following pattern, exemplified in the find_files() function, as follows:

1. Use recursive_directory_iterator to iterate through all the entries of...