tdg5

def itoa(int, base = 10)
  str = ""
  while int > 0
    str = ((int % base) + 48).chr + str
    int /= base
  end
  str
end

def itoarr(int, base = 10)

tdg5

require "benchmark/ips"

def recursive_factorial(n)
  n < 2 ? 1 : n * recursive_factorial(n - 1)
end

def tail_recursive_factorial(n, accumulator = 1)
  n < 2 ? accumulator : tail_recursive_factorial(n - 1, n * accumulator)
end

tdg5

require 'tco_method'

module StackBuster
  def self.fact_yielder(n, acc = 1, &block)
    block.call(acc)
    n <= 1 ? acc : fact_yielder(n - 1, n * acc, &block)
  end
end

puts "StackBuster:"

tdg5

or_result = nil
begin
  or_result = true | Seriously(this(is(valid(Ruby!))))
rescue NameError
  puts "NameError :("
end
# Name Error :(

or_result
# => nil

tdg5

class PrimeFinder
  attr_reader :limit, :primes

  def initialize(limit)
    @limit = limit
    @primes = []
    generate_primes!(limit)
  end

  def prime?(candidate)

tdg5

# Add to require from script/rails before rails/commands is required.

if /^c(?:onsole)?$/ === ARGV[0] && index = ARGV.index { |arg| /-(t|-tag)/ === arg }
  # Intercept the arguments vector before it is passed to Rails::Console.
  # Drop the -t or --tag arg and following argument which should be the tag
  # itself. That's all that should need to be done because the tag will show up
  # in the command name given how the command was invoked.
  ARGV.slice!(index, 2)
end

tdg5

# Project Euler #8 - Largest product in a series
# https://projecteuler.net/problem=8
#
# Find the thirteen adjacent digits in the 1000-digit number that have the
# greatest product. What is the value of this product?

def largest_product_in_series(series, adjacency_length = 13)
  factors = []
  largest_product = 0
  current_product = 1

tdg5

require 'benchmark/ips'
number = "731671765313306249192251196744265747423553491949349698352031277450632623957831801698480186947885184385861560789112949495459501737958331952853208805511125406987471585238630507156932909632952274430435576689664895044524452316173185640309871112172238311362229893423380308135336276614282806444486645238749303589072962904915604407723907138105158593079608667017242712188399879790879227492190169972088809377665727333001053367881220235421809751254540594752243525849077116705560136048395864467063244157221553975369781797784617406495514929086256932197846862248283972241375657056057490261407972968652414535100474821663704844031998900088952434506585412275886668811642717147992444292823086346567481391912316282458617866458359124566529476545682848912883142607690042242190226710556263211111093705442175069416589604080719840385096245544436298123098787992724428490918884580156166097919133875499200524063689912560717606058861164671094050775410022569831552000559357297257163626956188267042825248360082325753042

tdg5

module LexicalScope
  SCOPED_CONSTANT = [:lexical_scope].freeze

  def scoped_value
    value = defined?(super) ? super.dup : []
    value.concat(SCOPED_CONSTANT)
  end
end

module IsWeird

tdg5

module Concerns
  module Mocha
    module CallsThrough
      def calls_through
        method_name = @method_matcher.expected_method_name
        @mock.instance_variable_get(:@receiver)
        @original_method = @mock.instance_variable_get(:@mockery).stubba.stubba_methods.find do |mockery|
          mockery.method == method_name
        end.instance_variable_get(:@original_method)
        self