std::filesystem::path::root_name
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< cpp | filesystem | path
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Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
std::filesystem::path
path::root_name
(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
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().
[edit] Parameters
(none)
[edit] Return value
The root name of the path.
[edit] Exceptions
May throw implementation-defined exceptions.
[edit] Example
Run this code
#include <filesystem> #include <iostream> 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:"