Integral types are the FLI types that represent integers. They consist of the following: :int , :byte , :long , :short , :signed , :unsigned and :enum .
Integral types can be combined in a list for readability and compatibility purposes with the foreign language, although when translated to Lisp such combinations are usually returned as a Lisp integer , or a fixnum for byte sized combinations. For example, a C unsigned long can be represented in the FLI as an (:unsigned :long) .