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std::filesystem::path::root_path

path root_path() const;
(since C++17)

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

Effectively returns root_name() / root_directory().

Parameters

(none)

Return value

The root path of the path.

Exceptions

May throw implementation-defined exceptions.

Example

#include <filesystem>
#include <iostream>
namespace fs = std::filesystem;

int main()
{
    std::cout << "Current root path is: " << fs::current_path().root_path() << '\n';
}

Possible output:

Current root path is: "C:\"

See also

root_name
returns the root-name of the path, if present
(public member function)
root_directory
returns the root directory of the path, if present
(public member function)

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https://en.cppreference.com/cpp/filesystem/path/root_path

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