39 lines
981 B
Factor
39 lines
981 B
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.backend
|
||
|
|
parser ;
|
||
|
|
IN: bit-vectors
|
||
|
|
|
||
|
|
<PRIVATE
|
||
|
|
|
||
|
|
: bit-array>vector ( bit-array length -- bit-vector )
|
||
|
bit-vector boa ; inline
|
||
|
|
|
||
|
|
PRIVATE>
|
||
|
|
|
||
|
|
: <bit-vector> ( n -- bit-vector )
|
||
|
|
<bit-array> 0 bit-array>vector ; inline
|
||
|
|
|
||
|
|
: >bit-vector ( seq -- bit-vector ) ?V{ } clone-like ;
|
||
|
|
|
||
|
|
M: bit-vector like
|
||
|
|
drop dup bit-vector? [
|
||
|
|
dup bit-array?
|
||
|
|
[ dup length bit-array>vector ] [ >bit-vector ] if
|
||
|
|
] unless ;
|
||
|
|
|
||
|
|
M: bit-vector new-sequence
|
||
|
|
drop [ <bit-array> ] keep >fixnum bit-array>vector ;
|
||
|
|
|
||
|
|
M: bit-vector equal?
|
||
|
|
over bit-vector? [ sequence= ] [ 2drop f ] if ;
|
||
|
|
|
||
|
|
M: bit-array new-resizable drop <bit-vector> ;
|
||
|
|
|
||
|
|
INSTANCE: bit-vector growable
|
||
|
|
|
||
|
|
: ?V \ } [ >bit-vector ] parse-literal ; parsing
|
||
|
|
|
||
|
|
M: bit-vector pprint-delims drop \ ?V{ \ } ;
|