Std::filesystem::path::parent_path (3) Linux Manual Page

std::filesystem::path::parent_path – std::filesystem::path::parent_path

Synopsis

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.

Parameters

(none)

Return value

The path to the parent directory.

Exceptions

(none)

Example

// Run this code

#include <iostream>

#include <filesystem>

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"

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