- check-fixnum LOC OBJ #!optional ARGNAMprocedure
- check-positive-fixnum LOC OBJ #!optional ARGNAMprocedure
- check-non-negative-fixnum LOC OBJ #!optional ARGNAMprocedure
- check-natural-fixnum LOC OBJ #!optional ARGNAMprocedure
- check-negative-fixnum LOC OBJ #!optional ARGNAMprocedure
- check-non-positive-fixnum LOC OBJ #!optional ARGNAMprocedure