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

std::filesystem::path::remove_filename: std::filesystem::path::remove_filename

NAME

std::filesystem::path::remove_filename - std::filesystem::path::remove_filename

Synopsis

path& remove_filename() (1) (since C++17)

Removes a single generic-format filename component (as returned by filename) from the given generic-format path.
After this function completes, has_filename returns false.

Parameters

(none)

Return value

*this

Exceptions

(none)

Example

// Run this code

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

  int main()
  {

      std::cout << fs::path("foo/bar").remove_filename() << '\n'
                << fs::path("foo/").remove_filename() << '\n'
                << fs::path("/foo").remove_filename() << '\n'
                << fs::path("/").remove_filename() << '\n';
  }

Output:

  "foo/"
  "foo/"
  "/"
  "/"