map-reduce-outputs ( quot mapper reducer -- quot )
Factor handbook > The language > Combinators > Smart combinators

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Vocabulary
combinators.smart

Inputs and outputs

quot	a quotation
mapper	a quotation
reducer	a quotation

Word description
Infers the number of outputs from quot and, treating those outputs as a sequence, calls map-reduce on them.

Examples

USING: math combinators.smart prettyprint ; [ 1 2 3 ] [ sq ] [ + ] map-reduce-outputs .
14

Definition

USING: kernel macros ;

IN: combinators.smart

MACRO: map-reduce-outputs ( quot mapper reducer -- quot )
    [ [ map-outputs ] 2curry ] dip [ reduce-outputs ] 2curry ;