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use iota in generalizaions

db4
Doug Coleman 2009-08-19 09:53:13 -05:00
parent fadede137c
commit 346636ed3b
1 changed files with 3 additions and 3 deletions
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6
basis/generalizations/generalizations.factor
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@ -15,7 +15,7 @@ IN: generalizations
MACRO: nsequence ( n seq -- )
[
[ drop <reversed> ] [ '[ _ _ new-sequence ] ] 2bi
[ drop iota <reversed> ] [ '[ _ _ new-sequence ] ] 2bi
[ '[ @ [ _ swap set-nth-unsafe ] keep ] ] reduce
] keep
'[ @ _ like ] ;
@ -27,7 +27,7 @@ MACRO: nsum ( n -- )
1 - [ + ] n*quot ;
MACRO: firstn-unsafe ( n -- )
[ '[ [ _ ] dip nth-unsafe ] ] map '[ _ cleave ] ;
iota [ '[ [ _ ] dip nth-unsafe ] ] map '[ _ cleave ] ;
MACRO: firstn ( n -- )
dup zero? [ drop [ drop ] ] [
@ -94,7 +94,7 @@ MACRO: mnswap ( m n -- )
1 + '[ _ -nrot ] swap '[ _ _ napply ] ;
MACRO: nweave ( n -- )
[ dup <reversed> [ '[ _ _ mnswap ] ] with map ] keep
[ dup iota <reversed> [ '[ _ _ mnswap ] ] with map ] keep
'[ _ _ ncleave ] ;
MACRO: nbi-curry ( n -- )