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tests whether the argument is an atom.
atom(+Term)
atom/1 succeeds if Term is an atom otherwise it fails.
Arguments
Term term
Examples
| atom('this is an atom'). | Succeeds. |
| atom([]). | Succeeds. |
| atom(Var). | Fails. |
| atom([a,t,o,m]). | Fails. |
Standard
This predicate is part of the ISO-Prolog Standard.
See also
atomic/1, compound/1, float/1, integer/1, nonvar/1, number/1, var/1.
| document: http://www.ifcomputer.co.jp/MINERVA/Manual/Reference/Predicates/type_test/atom/print_en.html published 2008/8/25 update 1997/6/22 (c) 1996-2006 IF Computer Japan | ||||||||
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