std::filesystem::path::parent_path (3) - Linux Manuals

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

NAME

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"