17 lines
326 B
Factor
17 lines
326 B
Factor
USING: namespaces math partial-continuations tools.test
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kernel sequences ;
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IN: temporary
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SYMBOL: sum
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: range ( r from to -- n )
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over - 1 + rot [
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-rot [ over + pick call drop ] each 2drop f
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] bshift 2nip ;
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[ 55 ] [
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0 sum set
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[ 1 10 range sum get + sum set f ] breset drop
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sum get
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] unit-test
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