This structure contains an array of entities of type PK_TOPOL_t


typedef struct PK_TOPOL_array_s
    {
    PK_TOPOL_t     *array;   --- array of TOPOLogical entities
    int             length;  --- length of array
    }
    PK_TOPOL_array_t;

It has the fields:

array:   array of entities of type PK_TOPOL_t

length:  the number of entities in array