not ( obj -- ? ) (original) (raw)
not ( obj -- ? )
Factor handbook » The language » Booleans
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Vocabulary
kernel
Inputs
| obj | a generalized boolean |
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Outputs
| ? | a boolean |
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Word description
For f outputs t and for anything else outputs f.
Notes
This word implements boolean not, so applying it to integers will not yield useful results (all integers have a true value). Bitwise not is the bitnot word.
Definition