32 lines
952 B
Factor
32 lines
952 B
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: arrays
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USING: kernel kernel-internals math math-internals sequences
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sequences-internals ;
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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 ) [ f <array> ] >sequence ; 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 } ) 1 swap <array> ; flushable
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: 2array ( x y -- { x y } )
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2 swap <array> [ 0 swap set-array-nth ] keep ; flushable
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: 3array ( x y z -- { x y z } )
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3 swap <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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