Do we have closures in C++?

Question

I was reading about closures on the net. I was wondering if C++ has a built-in facility for closures or if there is any way we can implement closures in C++?

Answer 1

Strictly speaking. 'Closure' is LISP only. Use Let returns lambda as last commands. 'Let Over Lambda'. This is possible only for LISP because of infinite scope with lexical scoping. I don't know any other language support this natively until know.

(defun my-closure ()
   (let ((cnt 0))
      (lambda () 
         (format t "called : ~A times" (incf cnt)))))