/CHARACTERISTICS=(option[ . . . ])
       /CHARACTERISTICS=ALL (D)

    Indicates which characteristics of the occurrences should be
    checked. You can use one or more of the following options to
    request specific information:

    IMPLICIT_           Checks that all symbols are explicitly
    DECLARATIONS        declared.

    TYPE                Checks that the types of all occurrences of
                        each symbol match.

    UNIQUENESS          Checks that multiple declarations of the same
                        symbol have the same name.

    UNUSED_SYMBOLS      Checks that all symbols are used.

    USAGE               Looks for symbols that are read but never
                        written, or written but never read.

    ALL                 Checks all of the preceding characteristics.

    Any of these options (except ALL) can have the prefix NO to
    indicate that the characteristic should not be checked.

    Each of the characteristic options takes a query-expression as
    an optional value. The characteristic-specific query expression
    specifies the set of occurrences for which that characteristic
    will be checked. If the prefix NO is present, then the query
    expression indicates occurrences for which that characteristic
    will not be checked. The default query expression for each
    characteristic option is to check all occurrences.