char_array<-modify

char_array <-modify: char_array -> char_array

Called internally by the various get methods that return a modified copy of the char_array (char_array<-append, etc.). The version defined for class char_array is defined as:

modify(CA, To:char_array, Value:char_array) :<-
        get(CA, class, Class),
        get(Class, instance, To, Value).

Redefinition may be necessary for subclasses of class char_array. Examples are the PCE/Lisp predefined class lisp_symbol.