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is_event(?Term)

Succeeds if Term is an event name or handle
Term
Prolog term.

Description

Used to test whether Term is either an event name (an atom) or an event handle (a special kind of handle as created by event_create/3).

Modes and Determinism

Fail Conditions

Fails if Term is neither an atom nor an event handle

Examples


    ?- is_event(my_event).
    Yes (0.00s cpu)

    ?- event_create(true, [], E), is_event(E).
    E = 'EVENT'(16'edc90b18)
    Yes (0.00s cpu)

    ?- bag_create(B), is_event(B).
    No (0.00s cpu)

    ?- is_event(_).
    No (0.00s cpu)

    ?- is_event(42).
    No (0.00s cpu)

See Also

event / 1, atom / 1, is_handle / 1, event_create / 3, type_of / 2