51 lines
1.4 KiB
Factor
51 lines
1.4 KiB
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: kernel-internals
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USING: kernel math math-internals sequences sequences-internals ;
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: array= ( seq seq -- ? )
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#! This is really only used to compare tuples.
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over array-capacity over array-capacity number= [
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dup array-capacity [
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>r 2dup r> tuck swap array-nth >r swap array-nth r> =
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] all? 2nip
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] [
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2drop f
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] if ; flushable
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IN: arrays
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M: array clone (clone) ;
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M: array length array-capacity ;
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M: array nth bounds-check nth-unsafe ;
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M: array set-nth bounds-check set-nth-unsafe ;
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M: array nth-unsafe >r >fixnum r> array-nth ;
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M: array set-nth-unsafe >r >fixnum r> set-array-nth ;
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M: array resize resize-array ;
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: >array ( seq -- array )
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[ length <array> 0 over ] keep copy-into ; inline
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M: array like drop dup array? [ >array ] unless ;
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M: byte-array clone (clone) ;
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M: byte-array length array-capacity ;
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M: byte-array resize resize-array ;
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: 1array ( x -- { x } )
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1 <array> [ 0 swap set-array-nth ] keep ; flushable
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: 2array ( x y -- { x y } )
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2 <array>
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[ 1 swap set-array-nth ] keep
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[ 0 swap set-array-nth ] keep ; flushable
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: 3array ( x y z -- { x y z } )
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3 <array>
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[ 2 swap set-array-nth ] keep
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[ 1 swap set-array-nth ] keep
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[ 0 swap set-array-nth ] keep ; flushable
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: zero-array ( n -- array ) 0 <repeated> >array ;
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