The minusp
, plusp
and zerop
tests for an int64 object.
The function int64-minusp
tests whether its argument x is int64< than the value of +int64-0+.
The function int64-plusp
tests whether its argument x is int64> than the value of +int64-0+.
The function int64-zerop
tests whether its argument x is int64= to the value of +int64-0+.
See the section Fast 64-bit arithmetic for more information about the INT64 API.
LispWorks User Guide and Reference Manual - 13 Feb 2015