Boolean values: Difference between revisions
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if empty? "|| [print "empty] ; empty word
</lang>
=={{header|Objective-C}}==
Objective-C follows pretty much the same rules as C. In addition to C, Objective-C has a <code>BOOL</code> boolean type, with values <code>YES</code> for true and <code>NO</code> for false. Objective-C also adds several special types of pointers; for pointers to objects (values of type <code>id</code>), the <code>nil</code> pointer is false, everything else is true; for pointers to classes (values of type <code>Class</code>), the <code>Nil</code> pointer is false, everything else is true.
=={{header|OCaml}}==
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