std::filesystem::path::root_name (3) Linux Manual Page

std::filesystem::path::root_name – std::filesystem::path::root_name

Synopsis

path root_name() const; (since C++17)
Returns the root name of the generic-format path. If the path (in generic format) does not include root name, returns path().

Parameters

(none)

Return value

The root name of the path.

Exceptions

(none)

Example

// Run this code

#include <iostream>

#include <filesystem>

namespace fs = std::filesystem;
int main()

{
    std::cout << "Current root name is: " << fs::current_path().root_name() << '\n';
}

Possible output:

  Current root name is: "C:"

See also

               returns the root directory of the path, if present
root_directory (public member function)
               returns the root path of the path, if present
root_path (public member function)