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 - 13 Feb 2015