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make singleton? foldable

db4
Doug Coleman 2008-01-13 08:02:41 -10:00
parent 229576feec
commit a592f3a37b
1 changed files with 1 additions and 1 deletions
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extra/sequences/lib/lib.factor
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@ -59,7 +59,7 @@ IN: sequences.lib
] { } make ; ] { } make ;
: singleton? ( seq -- ? ) : singleton? ( seq -- ? )
length 1 = ; length 1 = ; foldable
: delete-random ( seq -- value ) : delete-random ( seq -- value )
[ length random ] keep [ nth ] 2keep delete-nth ; [ length random ] keep [ nth ] 2keep delete-nth ;