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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
       filename) 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 <iostream>
	#include <filesystem>
	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_file-
       name() << '\n'
		<<  (p	=  ""	    ).remove_filename()	<< '\t'	<< p.has_file-
       name() << '\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		  2022.07.31	  std::filesy...ve_filename(3)

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