23 lines
399 B
Forth
23 lines
399 B
Forth
Traditional Forth has a CREATE/DOES> construct. RETRO allows for
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something similar using the `does` combinator.
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An example in traditional Forth:
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: acc ( n "name" -- )
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create , does> dup >r @ dup 1+ r> ! ;
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And in RETRO, using `does` and the `bi` combinator:
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~~~
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:acc (ns-)
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d:create , [ [ fetch ] [ v:inc ] bi ] does ;
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~~~
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Here's a little test case:
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~~~
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#10 'foo acc
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foo
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foo
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foo
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~~~
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