std::filesystem::path::parent_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::parent_path
(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
path parent_path() const;
(since C++17)
Returns the path to the parent directory.
If has_relative_path() returns false, the result is a copy of *this. Otherwise, the result is a path whose generic format pathname is the longest prefix of the generic format pathname of *this that produces one fewer element in its iteration.
[edit] Parameters
(none)
[edit] Return value
The path to the parent directory, or a copy of *this if not has_relative_path().
[edit] Exceptions
May throw implementation-defined exceptions.
[edit] Example
Run this code
#include <filesystem> #include <iostream> namespace fs = std::filesystem; int main() { for (fs::path p : {"/var/tmp/example.txt", "/", "/var/tmp/."}) std::cout << "The parent path of " << p << " is " << p.parent_path() << '\n'; }
Possible output:
The parent path of "/var/tmp/example.txt" is "/var/tmp" The parent path of "/" is "/" The parent path of "/var/tmp/." is "/var/tmp"