void pdel_elem_range(
Pint ep1_value /* element position 1 value */ Pint ep2_value /* element position 2 value */
)
DELETE ELEMENT RANGE destroys the elements in the open structure from the element number ep1_value to the element numbered ep2_value, inclusive.
The elements following ep2_value are renumbered and element pointer points to the element which preceded ep1_value.
open structure, set element pointer, empty structure, delete element, delete element between labels