move_to_front

    3 ( C.~ 1&,;0&,)~ 'abc*ef'
*acbef




On 31-01-12 16:44, David Ward Lambert wrote:
> Are there simple versions of swap and of move_to_front that use C. , A.
> or (other)?  My definitions use amend.  Thank you, Dave.
>
>     1 5 swap 'abcdefgh'
> afcdebgh
>
>     3 move_to_front 'abc*ef'
> *abcef
>
>
>     swap=: ({~ |.)~`[`]}
>     move_to_front=: ((({~ _1&|.)~`[`]})~ i.@:>:)~
>
>
> ----------------------------------------------------------------------
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-- 
Met vriendelijke groet,
@@i = Arie Groeneveld

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