std::experimental::filesystem::path::root_name

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Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals 2 TS)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Concepts (concepts TS)
Ranges (ranges TS)
Special mathematical functions (special math TR)
path root_name() const;
(filesystem TS)

Returns the root name of the path. If the path does not include root name, returns path().

Parameters

(none)

Return value

The root name of the path.

Exceptions

(none)

Example

#include <iostream>
#include <experimental/filesystem>
namespace fs = std::experimental::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
(public member function)
returns the root path of the path, if present
(public member function)