39 lines
1.0 KiB
Factor
39 lines
1.0 KiB
Factor
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! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays kernel kernel.private math sequences
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sequences.private growable bit-arrays prettyprint.backend
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parser accessors ;
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IN: bit-vectors
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TUPLE: bit-vector
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{ underlying bit-array initial: ?{ } }
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{ length array-capacity } ;
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: <bit-vector> ( n -- bit-vector )
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<bit-array> 0 bit-vector boa ; inline
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: >bit-vector ( seq -- bit-vector )
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T{ bit-vector f ?{ } 0 } clone-like ;
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M: bit-vector like
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drop dup bit-vector? [
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dup bit-array?
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[ dup length bit-vector boa ] [ >bit-vector ] if
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] unless ;
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M: bit-vector new-sequence
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drop [ <bit-array> ] [ >fixnum ] bi bit-vector boa ;
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M: bit-vector equal?
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over bit-vector? [ sequence= ] [ 2drop f ] if ;
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M: bit-array new-resizable drop <bit-vector> ;
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INSTANCE: bit-vector growable
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: ?V{ \ } [ >bit-vector ] parse-literal ; parsing
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M: bit-vector >pprint-sequence ;
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M: bit-vector pprint-delims drop \ ?V{ \ } ;
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