21 lines
284 B
Forth
21 lines
284 B
Forth
# example|RecursiveFactorial
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Declare module constant (prevents reloading when using `import`):
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````
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:example|RecursiveFactorial ;
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````
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----
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````
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:<factorial>
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dup #1 -eq? 0; drop
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dup n:dec <factorial> * ;
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:factorial
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dup n:zero?
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[ n:inc ]
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[ <factorial> ] choose ;
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````
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