# File lib/authlogic/crypto_providers/bcrypt.rb, line 57
        def cost=(val)
          if val < ::BCrypt::Engine::MIN_COST
            raise ArgumentError.new(
              "Authlogic's bcrypt cost cannot be set below the engine's " \
                "min cost (#{::BCrypt::Engine::MIN_COST})"
            )
          end
          @cost = val
        end