/prog/ - .NET is now cross-platform.

Name: Anonymous 2014-11-12 21:08

http://news.microsoft.com/2014/11/12/microsoft-takes-net-open-source-and-cross-platform-adds-new-development-capabilities-with-visual-studio-2015-net-2015-and-visual-studio-online/

They throw around terms like open-source, but that doesn't usually mean what you want it to when MS says it, so who knows. There's also a free version of VS for small teams which is apparently feature-complete or nearly so.

Name: Anonymous 2014-11-18 8:01

Actually the naive implementation for laziness is enough to get linear time on that example.

(defclass promise ()
  ((cached-value :accessor get-cached-value
                 :initarg :cached-value
                 :initform nil)
   (evaluated :accessor is-evaluated
              :initarg :evaluated
              :initform nil)
   (generator :accessor get-generator
              :initarg :generator)))

(defmethod force ((self promise))
  (with-slots (cached-value evaluated generator) self
    (if evaluated ;; replace with nil to get exponential time
      cached-value
      (progn (setf cached-value (funcall generator))
        (setf evaluated t)
        cached-value))))

(defun make-promise (generator)
  (make-instance 'promise :generator generator))

(defmacro delay (expression)
  `(make-promise (lambda () ,expression)))

(defun lazy-map (fn l1 l2)
  (if (or (null l1) (null l2))
    nil
    (cons (funcall fn (car l1) (car l2)) 
      (delay (lazy-map fn
               (force (cdr l1))
               (force (cdr l2)))))))

(defvar fibs2 nil)
(setf fibs2
  (cons 1 (delay
    (cons 1 (delay
      (lazy-map #'+ fibs2 (force (cdr fibs2))))))))

Thanks for the challenge haskell-san

Name: Anonymous 2017-01-30 6:04

So when will the Linux kernel be ported to .NET?

Name: Anonymous 2017-01-30 14:21

>>42
When microsoft decides to prove a point. Embrace, Extend, Extinguish.

Name: Anonymous 2017-01-30 14:35

embrace those dubs

Name: Anonymous 2017-01-31 17:51

>>44
Dubs extended.

Name: Anonymous 2017-02-01 1:33

extend my anus

Name: Anonymous 2017-02-01 7:54

implement diff to compare anus with extended anus

.NET is now cross-platform.

1 Name: Anonymous 2014-11-12 21:08

41 Name: Anonymous 2014-11-18 8:01

42 Name: Anonymous 2017-01-30 6:04

43 Name: Anonymous 2017-01-30 14:21

44 Name: Anonymous 2017-01-30 14:35

45 Name: Anonymous 2017-01-31 17:51

46 Name: Anonymous 2017-02-01 1:33

47 Name: Anonymous 2017-02-01 7:54