vlasovskikh

# Copyright (c) 2014 Andrey Vlasovskikh
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in

vlasovskikh

-module(pday).
-export([main/1, pday/1, ordinal_to_date/2, date_to_string/1]).


ordinal_to_date(Year, N) ->
    {Month, Day} = submod(N, months(Year)),
    {Year, Month + 1, Day}.


date_to_string({Year, Month, Day}) ->

vlasovskikh

// Is it possible to shorten collection->array conversion in Kotlin?
fun f(): Array<String> {
  val xs = setOf("foo", "bar")
  return xs.toArray(Array(xs.size, { "" }))
}

vlasovskikh

Given the following buffer in the <Normal mode>:
  """
  123<caret>456
  123789
  """
When I type:
  """
  cw, abc, <Esc>, hhj, .
  """
Then the buffer should contain:

vlasovskikh

/**
 * Object algebra approach to the Expression problem in Kotlin.
 *
 * See also <http://lambda-the-ultimate.org/node/4572>.
 */

// Cannot put this fun inside main() in Kotlin M2
fun exp2plus3<A>(f: IntAlg<A>): A = f.add(f.lit(2), f.lit(3))

fun main(args : Array<String>) {

vlasovskikh

f = ->
  x = 2
x = 1

> console.debug "x = #{ x }"
x = 1

> console.debug "f() = #{ f() }"
f() = 2

vlasovskikh

I = (x) -> x
S = (f) -> (g) -> (x) -> (f x) (g x)
K = (x) -> (y) -> x

vlasovskikh

#!/usr/bin/env python

# Author: Andrey Vlasovskikh
# License: MIT

import sys
import os
import subprocess

def main():

vlasovskikh

Funny GCC Warning for FP Programmers

(via [zakharov][1])

Consider the following program:

$ cat > tmp.c << EOF
> struct S {

> int x;

vlasovskikh

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright (c) 2010 Andrey Vlasovskikh
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to