eregon

This example shows how to setup an environment running Rails 3 beta under 1.9.1 with a 'rails3' gem set.
((This is a fork of wayne, please see his gist if you want recent syntax for rvm.
Mainly, gems is replaced by gemset))

∴ rvm update --head
# ((Open a new shell))

# If you do not already have the ruby interpreter installed, install it:
∴ rvm install 1.9.1 

eregon

# Implement 'go to higher neighbour' algorithm

class Coord < Struct.new(:x, :y)
  @@coords = []
  
  def to_s
    "#{x} #{y}"
  end
  alias :inspect :to_s
  

eregon

# Ruby Quiz #234 : Random Points within a Circle
# Benoit Daloze

include Math

class Point < Struct.new(:x, :y)
  def distance to
    hypot(x-to.x, y-to.y)
  end

eregon

Ceci est un essai de réponse en Ruby à:
http://lasts.goldzoneweb.info/pf.html

eregon

require "benchmark"
require "thread"
require "thread/queue"

methods = {
  push: -> q { N.times { |i| q.push i } },
  pop: -> q { N.times { |i| q.pop } },
  empty?: -> q {
    (N/2).times { |i| q.empty? }
    q.push :tmp

eregon

--trace ruby -v

rvm 0.1.45 by Wayne E. Seguin (wayneeseguin@gmail.com) [http://rvm.beginrescueend.com/]

+__rvm_parse_args:434> [[ -z '' ]]
+__rvm_parse_args:434> [[ ! -z ruby-1.9.2-rc2 ]]
+__rvm_parse_args:434> rvm_action=use 
+__rvm_parse_args:435> [[ ! -z '' ]]
+__rvm_parse_args:435> [[ ! -z '' ]]
+__rvm_parse_args:9> [[ 2 -gt 0 ]]

eregon

info: default (ruby-head@global): ruby 1.9.3dev (2010-08-13) [x86_64-darwin10.4.0] 

ruby 1.9.3dev (2010-08-13) [x86_64-darwin10.4.0]

info: ruby-1.8.7-head (ruby-1.8.7-head@global): ruby 1.8.7 (2010-07-17 patchlevel 300) [i686-darwin10.4.0] 

ruby 1.8.7 (2010-07-17 patchlevel 300) [i686-darwin10.4.0]

info: ruby-1.8.7-head@global: ruby 1.8.7 (2010-07-17 patchlevel 300) [i686-darwin10.4.0] 

eregon

# Binding.of_caller
# Revisited for 1.9
# eregon

=begin
def Binding.of_caller(&block)
  old_critical = Thread.critical
  Thread.critical = true
  count = 0
  cc, result, error = Continuation.create(nil, nil)

eregon

# encoding: utf-8
require "io/console"
def ⌛() STDIN.getch end
alias λ lambda
alias ✎ puts
def ❄() λ { |e| ✎ e } end

Fiber.new { |b = -> w { ✎ w }|
  loop do
    b[Fiber.yield]

eregon

require 'benchmark'

N = 10000
HASH_SIZE = 10

HASH = {}
HASH_SIZE.times do |n|
  HASH[n] = (rand * 100).round - 50  
end
puts HASH.inspect