yxhuvud

def shuffle(arr)
  xs = 0xdeadbeef_u32
  arr.size.times do |i|
    xs ^= xs << 13
    xs ^= xs >> 17
    xs ^= xs << 5
    j = xs % (i + 1)
    arr[i], arr[j] = arr[j], arr[i]
  end
end

yxhuvud

Keybase proof

I hereby claim:

• I am yxhuvud on github.
• I am yxhuvud (https://keybase.io/yxhuvud) on keybase.
• I have a public key ASAW4peGXvEbn2Nta19DfXLsDLBmXzHLrN1NxHL7iM1PiAo

To claim this, I am signing this object:

yxhuvud

module LinkedList(T)
  macro included
    include Enumerable(T)

    property _next, _prev : T | Nil
  end

  def append(node : T)
    node.next = @_next
    node.prev = self

yxhuvud

require "benchmark"
require "big"

struct Int
  def binary_gcd(other)
    u = self.abs
    v = other.abs
    shift = self.class.zero

    return v if u == 0

yxhuvud

data = ['0', '1']
while data.size.even?
  data = data.each_slice(2).map do |(a, b)|
    a == b ? '1' : '0'
  end
end
data

yxhuvud

class Hash
  def dig(key : K, *args)
    value = fetch(key, nil)
    if args.size == 0 || value.nil?
      return value
    end
    if value.responds_to?(:dig)
      value.dig(*args)
    else
      raise ArgumentError.new

yxhuvud

"test".each_char do |char|
       ^~~~~~~~~

in ./test.cr:13: no overload matches 'Hash({Char | Symbol, Int32}, Item)#[]=' with types {Char, Int32}, Item
Overloads are:
 - Hash({Char | Symbol, Int32}, Item)#[]=(key : {Char | Symbol, Int32}, value : Item)

  foo[{char, 42}] = Item.new "foo"
     ^

yxhuvud

The Rubinius process is aborting with signal: SIGSEGV
--- begin system backtrace ---
bin/rbx() [0x6574b9]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fc52c1f8340]
bin/rbx(_ZN8rubinius16GarbageCollector11scan_objectEPNS_6ObjectE+0x16c) [0x7071cc]
bin/rbx(_ZN8rubinius7BakerGC17handle_promotionsEv+0x34) [0x703264]
bin/rbx(_ZN8rubinius7BakerGC7collectEPNS_6GCDataEPNS_17YoungCollectStatsE+0x302) [0x703e82]
bin/rbx(_ZN8rubinius12ObjectMemory13collect_youngEPNS_5StateEPNS_6GCDataEPNS_17YoungCollectStatsE+0x7c) [0x644d2c]
bin/rbx(_ZN8rubinius12ObjectMemory13collect_maybeEPNS_5StateERNS_11GCTokenImplEPNS_9CallFrameE+0x23a) [0x6451ca]
bin/rbx(_ZN8rubinius2VM13collect_maybeERNS_11GCTokenImplEPNS_9CallFrameE+0x42) [0x6827d2]

yxhuvud

Running 156 tasks using 4 parallel threads
1: CXX vm/builtin/constant_table.cpp
2: CXX vm/builtin/data.cpp
3: CXX vm/builtin/block_environment.cpp
4: CXX vm/builtin/compiled_code.cpp
In file included from /usr/lib/llvm-3.0/include/llvm/BasicBlock.h:18:0,
                 from /usr/lib/llvm-3.0/include/llvm/Function.h:23,
                 from /usr/lib/llvm-3.0/include/llvm/Module.h:18,
                 from /home/linus/prog/rubinius/vm/llvm/state.hpp:15,
                 from vm/builtin/block_environment.cpp:23:

yxhuvud

class CacheDb
  TABLE_POOL_LIMIT = 15
  DB = :cache_db

  AR_PROTOTYPE = Class.new(ActiveRecord::Base)
  AR_PROTOTYPE.abstract_class = true # To avoid STI inheritance..
  AR_PROTOTYPE.establish_connection DB

  def self.connection
    AR_PROTOTYPE.connection