The destructor converting an int32 object to an integer.
An int32 object or an integer of type
int32-to-integer returns an integer integer of type
(signed-byte 32) corresponding to the int32 object int32. The argument int32 can also be an integer of type
(signed-byte 32), in which case it is simply returned.
An error is signaled if int32 is not of type int32 or
See the section Fast 32-bit arithmetic for more information about the INT32 API.
LispWorks User Guide and Reference Manual - 13 Feb 2015