[ Type Testing | Reference Manual | Alphabetic Index ]

atomic(?Term)

Succeeds if Term is an atom, a number, or a string.
Term
Prolog term.

Description

Used to test whether Term is an atomic term. This is the negation of compound/1.

Modes and Determinism

Fail Conditions

Fails if Term is not an atom, a number or a string

Examples

Success:
    atomic(atom).
    atomic(1.4).
    atomic(3).
    atomic("Hello world").
    atomic([]).

Fail:
    atomic([1,3,3,6]).
    atomic(this(is,a,structure)).
    atomic(X).

See Also

atom / 1, compound / 1, is_list / 1, is_array / 1, var / 1