Function: gnus-range-difference
gnus-range-difference is a function alias for range-difference,
defined in range.el.gz.
This function is obsolete since 29.1; use range-difference instead.
Signature
(gnus-range-difference RANGE1 RANGE2)
Documentation
Return the range of elements in RANGE1 that do not appear in RANGE2.
Both ranges must be in ascending order.
Aliases
gnus-range-difference (obsolete since 29.1)