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

std::filesystem::path::filename: std::filesystem::path::filename

NAME

std::filesystem::path::filename - std::filesystem::path::filename

Synopsis

path filename() const; (since C++17)

Returns the generic-format filename component of the path.
Equivalent to relative_path().empty() ? path() : *--end().

Parameters

(none)

Return value

The filename identified by the path.

Exceptions

(none)

Example

// Run this code

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

  int main()
  {
      std::cout << fs::path("/foo/bar.txt").filename() << '\n'
                << fs::path("/foo/.bar").filename() << '\n'
                << fs::path("/foo/bar/").filename() << '\n'
                << fs::path("/foo/.").filename() << '\n'
                << fs::path("/foo/..").filename() << '\n'
                << fs::path(".").filename() << '\n'
                << fs::path("..").filename() << '\n'
                << fs::path("/").filename() << '\n'
                << fs::path("//host").filename() << '\n';
  }

Possible output:

  "bar.txt"
  ".bar"
  ""
  "."
  ".."
  "."
  ".."
  ""
  "host"