module Concurrent::Utility::NativeInteger

def ensure_integer(value)
  unless value.is_a?(Integer)
    raise ArgumentError.new("#{value} is not an Integer")
  end
  value
end

def ensure_integer_and_bounds(value)
  ensure_integer value
  ensure_upper_bound value
  ensure_lower_bound value
end

def ensure_lower_bound(value)
  if value < MIN_VALUE
    raise RangeError.new("#{value} is less than the maximum value of #{MIN_VALUE}")
  end
  value
end

def ensure_positive(value)
  if value < 0
    raise ArgumentError.new("#{value} cannot be negative")
  end
  value
end

def ensure_positive_and_no_zero(value)
  if value < 1
    raise ArgumentError.new("#{value} cannot be negative or zero")
  end
  value
end

def ensure_upper_bound(value)
  if value > MAX_VALUE
    raise RangeError.new("#{value} is greater than the maximum value of #{MAX_VALUE}")
  end
  value
end