sdeming

class Rubage
  (def foo a, b, c
     puts a
     puts b
     puts c
     (puts a.gsub /A/, 'B')
   end)
end

(if $0 == __FILE__

sdeming

#!/bin/env ruby
ENV['RAILS_ENV'] = 'production'

require 'fileutils'

def sudo(cmd, as = 'root')
  puts "sudo: #{cmd}"
  system("sudo -u #{as} #{cmd}")
end

sdeming

#include <iostream>

template <int N>
void pr(const std::string &msg)
{
    std::cout << msg << std::endl;
    pr<N-1>(msg); // would be nice to do tail call optimization here...
}

template <>

sdeming

class Foo
  class << self
    attr_accessor :a, :b
  end

  def self.register(args = {}) 
    args.each do |k,v|
      self.send(:"#{k}=", v)
    end
  end

sdeming

Rehearsal ------------------------------------------------------
proc wrapped eval:   1.020000   0.030000   1.050000 (  0.605000)
instance_eval:       2.950000   0.030000   2.980000 (  2.273000)
--------------------------------------------- total: 4.030000sec

                         user     system      total        real
proc wrapped eval:   0.200000   0.000000   0.200000 (  0.204000)
instance_eval:       1.800000   0.010000   1.810000 (  1.767000)

sdeming

#include <iostream>

using namespace std;

class A
{
public:
    virtual void Hello() {  cout << "Hello from A" << endl; }
    virtual ~A() {}
};

sdeming

require 'benchmark'

ordered_array = (0..10_000).map { |p| [p,p,p,p,p] }.flatten
random_array = ordered_array.dup.shuffle

Benchmark.bm do |b|
  b.report('index') do 
    random_array.map { |n| ordered_array.index(n) } 
  end