Identity lists

Author(s): Francisco Bueno.

Version: 0.4#5 (1998/2/24)

The operations in this module handle lists by performing equality checks via identity instead of unification.

• Usage and interface (idlists)
• Documentation on exports (idlists)

Usage and interface (idlists)

Documentation on exports (idlists)

PREDICATE: member_0/2:

No further documentation available for this predicate.

PREDICATE: memberchk/2:

memberchk(X,Xs)

Checks that X is an element of (list) Xs.

PREDICATE: list_insert/2:

Usage: list_insert(-(List),+Term)

• Description: Adds Term to the end of (tail-opened) List if there is not an element in List identical to Term.

PREDICATE: add_after/4:

Usage: add_after(+L0,+E0,+E,-(L))

• Description: Adds element E after the first element identical to E0 (or at end) of list L0, returning in L the new list.

PREDICATE: add_before/4:

Usage: add_before(+L0,+E0,+E,-(L))

• Description: Adds element E before the first element identical to E0 (or at start) of list L0, returning in L the new list.

PREDICATE: delete/3:

Usage: delete(+List,+Element,-(Rest))

• Description: Rest has the same elements of List except for all the occurrences of elements identical to Element.

PREDICATE: subtract/3:

Usage: subtract(+Set,+Set0,-(Difference))

• Description: Difference has the same elements of Set except those which have an identical occurrence in Set0.

PREDICATE: union_idlists/3:

Usage: union_idlists(+List1,+List2,-(List))

• Description: List has the elements which are in List1 but are not identical to an element in List2 followed by the elements in List2.

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