PARAMETER

 This statement is similar to the one discussed in Help topic:
 Statements PARAMETER; they both assign a symbolic name to a
 constant.  However, this PARAMETER statement differs from the other
 one in the following two ways:  its list is not bounded with
 parentheses; and the form of the constant, rather than implicit or
 explicit typing of the symbolic name, determines the data type of
 the variable.  Statement format:

    PARAMETER p=c [,p=c]...

    p  Is a symbolic name.

    c  Is a constant, the symbolic name of a constant, or a 
       compile-time constant expression.