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