




The minusp, plusp and zerop tests for an int32 object.
The function int32-minusp tests whether its argument x is int32< than the value of +int32-0+.
The function int32-plusp tests whether its argument x is int32> than the value of +int32-0+.
The function int32-zerop tests whether its argument x is int32= to the value of +int32-0+.
See the section Fast 32-bit arithmetic for more information about the INT32 API.
LispWorks User Guide and Reference Manual - 20 Sep 2017