24 lines
468 B
Factor
24 lines
468 B
Factor
IN: temporary
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USING: compiler kernel math sequences test ;
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: (fac) ( n! i -- n! )
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dup 0 = [
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drop
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] [
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[ * ] keep 1 - (fac)
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] ifte ;
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: fac ( n -- n! )
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1 swap (fac) ;
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: small-fac-benchmark
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#! This tests fixnum math.
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1 swap [ 10 fac 10 [ 1 + / ] each max ] times ; compiled
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: big-fac-benchmark
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10000 fac 10000 [ 1 + / ] each ; compiled
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[ 1 ] [ big-fac-benchmark ] unit-test
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[ 1 ] [ 1000000 small-fac-benchmark ] unit-test
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