Python integer_bit_size Beispiele

Beispiel #1

Datei: test_mom_builtins.py Projekt: rajeshvv/mom

    def test_bit_size_correct(self):
        numbers = [-12, 12, 1200, 120091, 123456789]
        for num in numbers:
            if num < 0:
                size = len(bin(num, None)) - 1
            else:
                size = len(bin(num, None))
            self.assertEqual(builtins.integer_bit_size(num), size)

        self.assertEqual(builtins.integer_bit_size(1023), 10)
        self.assertEqual(builtins.integer_bit_size(1024), 11)
        self.assertEqual(builtins.integer_bit_size(1025), 11)
        self.assertEqual(builtins.integer_bit_size(1 << 1024), 1025)
        self.assertEqual(builtins.integer_bit_size((1 << 1024) + 1), 1025)
        self.assertEqual(builtins.integer_bit_size((1 << 1024) - 1), 1024)
        self.assertEqual(builtins.integer_bit_size((1 << 32) - 1), 32)
        self.assertEqual(builtins.integer_bit_size((1 << 64) - 1), 64)

Beispiel #2

Datei: test_mom_builtins.py Projekt: rajeshvv/mom

  def test_bit_size_correct(self):
    numbers = [
      -12,
      12,
      1200,
      120091,
      123456789,
      ]
    for num in numbers:
      if num < 0:
        size = len(bin(num, None)) - 1
      else:
        size = len(bin(num, None))
      self.assertEqual(builtins.integer_bit_size(num), size)

    self.assertEqual(builtins.integer_bit_size(1023), 10)
    self.assertEqual(builtins.integer_bit_size(1024), 11)
    self.assertEqual(builtins.integer_bit_size(1025), 11)
    self.assertEqual(builtins.integer_bit_size(1 << 1024), 1025)
    self.assertEqual(builtins.integer_bit_size((1 << 1024) + 1), 1025)
    self.assertEqual(builtins.integer_bit_size((1 << 1024) - 1), 1024)
    self.assertEqual(builtins.integer_bit_size((1 << 32) - 1), 32)
    self.assertEqual(builtins.integer_bit_size((1 << 64) - 1), 64)

Beispiel #3

Datei: random.py Projekt: rajeshvv/mom

def generate_random_uint_between(low, high, rand_func=generate_random_bytes):
    """
  Generates a random long integer between low and high, not including high.

  :param low:
      Low
  :param high:
      High
  :param rand_func:
      Random bytes generator function.
  :returns:
      Random unsigned long integer value.
  """
    if not (builtins.is_integer(low) and builtins.is_integer(high)):
        raise TypeError("unsupported argument types(s): %r and %r" %
                        (type(low).__name__, type(high).__name__))
    if low >= high:
        raise ValueError("high value must be greater than low value.")
    substrate = high - low - 1
    bits = builtins.integer_bit_size(substrate)
    value = generate_random_uint_atmost(bits, rand_func=rand_func)
    while value > substrate:
        value = generate_random_uint_atmost(bits, rand_func=rand_func)
    return low + value

Beispiel #4

Datei: random.py Projekt: blightzero/SO-Fi

def generate_random_uint_between(low, high, rand_func=generate_random_bytes):
  """
  Generates a random long integer between low and high, not including high.

  :param low:
      Low
  :param high:
      High
  :param rand_func:
      Random bytes generator function.
  :returns:
      Random unsigned long integer value.
  """
  if not (builtins.is_integer(low) and builtins.is_integer(high)):
    raise TypeError("unsupported argument types(s): %r and %r" %
                    (type(low).__name__, type(high).__name__))
  if low >= high:
    raise ValueError("high value must be greater than low value.")
  substrate = high - low - 1
  bits = builtins.integer_bit_size(substrate)
  value = generate_random_uint_atmost(bits, rand_func=rand_func)
  while value > substrate:
    value = generate_random_uint_atmost(bits, rand_func=rand_func)
  return low + value

Beispiel #5

Datei: test_mom_builtins.py Projekt: rajeshvv/mom

 def test_bit_size_0_if_zero(self):
   self.assertEqual(builtins.integer_bit_size(0), 1)

Beispiel #6

Datei: test_mom_builtins.py Projekt: RoboTeddy/mom

 def test_bit_size_0_if_zero(self):
   self.assertEqual(integer_bit_size(0), 1)