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std::filesy...ve_filename(3)   C++ Standard Libary  std::filesy...ve_filename(3)

NAME
     std::filesystem::path::remove_filename	-     std::filesystem::path::re-
     move_filename

Synopsis
	path& remove_filename();  (since C++17)

	Removes a single generic-format filename component (as returned by file-
     name) from
	the given generic-format path.

	After this function completes, has_filename returns false.

Parameters
	(none)

Return value
	*this

Exceptions
	May throw implementation-defined exceptions.

Example
     // Run this code

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

      int main()
      {
	  fs::path p;
	  std::cout << std::boolalpha
		    << (p = "foo/bar").remove_filename() << '\t' <<  p.has_file-
     name() << '\n'
		    <<	(p  =  "foo/").remove_filename()  << '\t' << p.has_file-
     name() << '\n'
		    << (p = "/foo").remove_filename()  <<  '\t'  <<  p.has_file-
     name() << '\n'
		    <<	(p  = "/").remove_filename() << '\t' << p.has_filename()
     << '\n'
		    << (p = "").remove_filename() << '\t' << p.has_filename() <<
     '\n';
      }

Output:
      "foo/"  false
      "foo/"  false
      "/"     false
      "/"     false
      ""      false

See also
	filename	 returns the filename path component
			 (public member function)
	replace_filename replaces the last path component with another path
			 (public member function)
	has_filename	 checks if the corresponding path element is not empty
			 (public member function)

http://cppreference.com 	   2024.06.10	    std::filesy...ve_filename(3)
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