nullary


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nullary

(programming)
A description of an operator or function which takes no arguments, e.g. a function that returns the current time.

"Nullary" is part of the unary, binary, ternary sequence, and is more common than its synonym niladic.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
and the only new nullary predicate is [R.sup.y,y,y].
Let P and Q be fresh nullary predicate variables, and let [Psi]'(y, [x.sub.1], [x.sub.2]) (respectively, [Psi]"(y, [x.sub.1], [x.sub.2])) be obtained from [Psi](y, [x.sub.1], [x.sub.2]) by replacing E([x.sub.1], [x.sub.2]) with P (respectively, Q) and replacing E([x.sub.2], [x.sub.1]) with Q (respectively, P).
R(x) where R is any (monadic) predicate from R, and remove atoms R(c) where c [element of] {min, max, [y.sub.1], ..., [y.sub.k]} by using fresh nullary predicate variables.
(4) Observe that we assume MSO allows one to use nullary predicate variables (i.e., propositional variables) along with unary predicate variables.
An algebra (X; *, 0) with a binary operation * and a nullary operation 0.