def-

$ g++ -o x x.cpp
x.cpp: In function ‘int main()’:
x.cpp:9:13: error: no match for ‘operator<<’ (operand types are ‘std::ostream {aka std::basic_ostream<char>}’ and ‘voi ’)
   std::cout << foo() << std::endl;
             ^
x.cpp:9:13: note: candidates are:
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/iostream:39:0,
                 from x.cpp:1:
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/ostream:108:7: note: std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]
       operator<<(__ostream_type& (*__pf)(__ostream_type&))

def-

# http://unriskinsight.blogspot.de/2014/06/fast-functional-goats-lions-and-wolves.html
#
# Goats Wolves Lions    C++11  Nimrod
#    17     55     6     0.00    0.03
#   117    155   106     0.17    0.13
#   217    255   206     0.75    0.62
#   317    355   306     2.16    1.89
#   417    455   406     5.28    4.34
#   517    555   506    10.75    8.42
#   617    655   606    19.15   14.45

def-

# http://unriskinsight.blogspot.de/2014/06/fast-functional-goats-lions-and-wolves.html
#
# Goats Wolves Lions    C++11  Nimrod (functional)
#    17     55     6     0.00    0.00
#   117    155   106     0.17    0.31
#   217    255   206     0.75    1.88
#   317    355   306     2.16    5.81
#   417    455   406     5.28   14.16
#   517    555   506    10.75   27.72
#   617    655   606    19.15   46.19

def-

type
  Time = distinct float
  Frequency = distinct float
  Radioactivity = distinct float

proc `/` *(x: float, y: Time): Frequency = Frequency(x / float(y))
proc `/` *(x: float, y: Time): Radioactivity = Radioactivity(x / float(y))

# Error: ambiguous call; both ambiguous./(x: float, y: Time): Frequency and ambiguous./(x: float, y: Time): Radioactivity match for: (int literal(1), Time)
var fr: Frequency = 1 / Time(1)

def-

# 3.5 seconds
# compute average line length
var count = 0
var sum = 0

for line in stdin.lines:
  count += 1
  sum += line.len

# Not much faster

def-

# echo > bar.nim
# nimrod pretty bar.nim
config/nimrod.cfg(38, 2) Hint: added path: '/home/def/.babel/pkgs/' [Path]
Hint: used config file '/home/def/nimrod/config/nimrod.cfg' [Conf]
Hint: system [Processing]
lib/system.nim(53, 9) Error: name should be: Ptr
lib/system.nim(54, 9) Error: name should be: Ref
lib/system.nim(53, 2) Error: name should be: Ptr
lib/system.nim(54, 2) Error: name should be: Ref
lib/system.nim(129, 10) Error: name should be: t

def-

# 0.19 seconds, 79 MB/s

proc fgets(c: cstring, n: int, f: TFile): cstring {.
  importc: "fgets", header: "<stdio.h>", tags: [FReadIO].}

proc myReadLine(f: TFile, line: var TaintedString): bool =
  var buf {.noinit.}: array[8192, char]
  setLen(line.string, 0)
  result = true
  while true:

def-

import opengl
import glut

proc paint() {.cdecl.} =
  glClearColor(0.3,0.3,0.3,0.0)
  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT)

  glShadeModel(GL_SMOOTH)

  glLoadIdentity()

def-

import sequtils, math

template any(sequence, operation: expr): expr =
  var result {.gensym.}: bool = false
  for i in 0 .. <sequence.len:
    let it {.inject.} = sequence[i]
    result = operation
    if result:
      break
  result

def-

import sets

const
  moves = 8
  knight: array[moves, tuple[x, y: int]] =
    [(1, 2), (1, -2), (2, 1), (2, -1), (-1, 2), (-1, -2), (-2, 1), (-2, -1)]
  start = 2
  board_size = 6
  bs2 = board_size * board_size