Class: BitVector

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/bit_vector/version.rb,
ext/bit_vector/bit_vector.c

Constant Summary collapse

VERSION = 
0.9

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.from_bytes(arg) ⇒ Object 



437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
 
# File 'ext/bit_vector/bit_vector.c', line 437

static VALUE bits_s_from_bytes(VALUE self, VALUE arg) {
  struct BitVector *bits;
  VALUE retobj;
  int64_t len;

  Check_Type(arg, T_STRING);

  len = RSTRING_LEN(arg);
  if (len<1) {
    rb_raise(rb_eArgError, "array size");
  }

  retobj = Data_Make_Struct(self, struct BitVector, NULL, bits_free, bits);
  BITCOUNTS(bits, len*8);
  bits->ptr = ALLOC_N(uint64_t, bits->qws_len);

  memcpy(bits->ptr, RSTRING_PTR(arg), len);

  return retobj;
}

.new(*args) ⇒ Object 



361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
 
# File 'ext/bit_vector/bit_vector.c', line 361

static VALUE bits_s_new(int argc, VALUE *argv, VALUE self) {
  struct BitVector *bits;
  VALUE arg;
  VALUE obj;
  int   bitcnt;
  int64_t   len;
  uint64_t  qw, *bptr;
  unsigned char *ptr;

  obj = Data_Make_Struct(self, struct BitVector, NULL, bits_free, bits);

  switch(argc) {
    case 0:
      arg = INT2FIX(1);
      break;
    case 1:
      arg = argv[0];
      break;
    default:
      arg = INT2FIX(0);
      rb_raise(rb_eArgError, "Too many args");
  }

  switch(TYPE(arg)) {

  case T_FIXNUM:

    BITCOUNTS(bits, FIX2LONG(arg));
    if (bits->bit_len < 1) {
      rb_raise(rb_eArgError, "May not be less than one");
    }
    bits->ptr = ALLOC_N(uint64_t, bits->qws_len);
    memset(bits->ptr, 0, bits->qws_len*8);
    break;

  case T_STRING:

    len = RSTRING_LEN(arg);
    BITCOUNTS(bits,len);
    bits->ptr = ALLOC_N(uint64_t, bits->qws_len);
    memset(bits->ptr, 0, bits->qws_len*8);

    qw = 0;
    bitcnt = 0;
    ptr = (unsigned char *)RSTRING_PTR(arg);
    bptr = bits->ptr;
    while(len--) {
      switch(*ptr++) {
      case '0':
      case '-':
      case 'f':
      case 'F':
      case 'N':
        break;
      default:
        __asm ( "bts %1, %0" : "=g"(qw) : "r"(bitcnt) : "cc","memory");
      }
      bitcnt++;
      if (bitcnt == 64) {
        *bptr++ = qw;
        qw = 0;
        bitcnt = 0;
      }
    }
    if (bitcnt) {
      *bptr++ = qw;
    }
    break;

  default:
    rb_raise(rb_eArgError, "not valid value");
  }

  return obj;
}

Instance Method Details

#&(other) ⇒ Object 



692
693
694
695
696
697
698
699
700
701
702
703
704
 
# File 'ext/bit_vector/bit_vector.c', line 692

static VALUE bits_and(VALUE self, VALUE other) {
  VALUE r;
  struct BitVector *rbits, *xbits, *ybits;

  Data_Get_Struct(self,  struct BitVector, xbits);
  Data_Get_Struct(other, struct BitVector, ybits);

  r = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);

  bs_and(rbits, xbits, ybits);

  return r;
}

#*(other) ⇒ Object 



692
693
694
695
696
697
698
699
700
701
702
703
704
 
# File 'ext/bit_vector/bit_vector.c', line 692

static VALUE bits_and(VALUE self, VALUE other) {
  VALUE r;
  struct BitVector *rbits, *xbits, *ybits;

  Data_Get_Struct(self,  struct BitVector, xbits);
  Data_Get_Struct(other, struct BitVector, ybits);

  r = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);

  bs_and(rbits, xbits, ybits);

  return r;
}

#+(other) ⇒ Object 



659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
 
# File 'ext/bit_vector/bit_vector.c', line 659

static VALUE bits_or(VALUE self, VALUE other) {
  VALUE obj;
  struct BitVector *bits, *rbits, *xbits;

  Data_Get_Struct(self, struct BitVector, bits);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);
  *rbits = *bits;
  rbits->ptr = ALLOC_N(uint64_t, rbits->qws_len);
  memcpy(rbits->ptr, bits->ptr, rbits->qws_len*8);

  Data_Get_Struct(other, struct BitVector, xbits);
  bs_or(rbits, xbits);

  return obj;
}

#-(other) ⇒ Object

r = a and ~b



724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
 
# File 'ext/bit_vector/bit_vector.c', line 724

static VALUE bits_minus(VALUE self, VALUE other) {
  VALUE r;
  struct BitVector i;
  struct BitVector *rbits, *xbits, *ybits, *ibits;

  Data_Get_Struct(self,  struct BitVector, xbits);
  Data_Get_Struct(other, struct BitVector, ybits);
  r = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);

  ibits = &i;
  *ibits = *ybits;
  ibits->ptr = ALLOC_N(uint64_t, ibits->qws_len);
  memcpy(ibits->ptr, ybits->ptr, ibits->qws_len*8);

  if (xbits->bit_len > ybits->bit_len) bs_resize(ibits, xbits->bit_len);
  bs_not(ibits);
  bs_and(rbits, xbits, ibits);

  return r;
}

#<=>(other) ⇒ Object 



745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
 
# File 'ext/bit_vector/bit_vector.c', line 745

static VALUE bits_cmp(VALUE self, VALUE other) {
  struct BitVector *sbits, *obits;
  int64_t smax,omax,qws;
  uint64_t *sptr,*optr, sqw, oqw;

  Data_Get_Struct(self,  struct BitVector, sbits);
  Data_Get_Struct(other, struct BitVector, obits);

  smax = bs_max(sbits);
  omax = bs_max(obits);
  if (smax < omax) {
    return INT2FIX(-1);
  } else if (smax > omax) {
    return INT2FIX(1);
  }

  if (smax < 0) {
    return INT2FIX(0);
  }

  qws = (smax+63)/64;
  sptr = sbits->ptr + qws - 1;
  optr = obits->ptr + qws - 1;
  while(qws--) {
    sqw = *sptr--;
    oqw = *optr--;
    if (sqw < oqw) {
      return INT2FIX(-1);
    } else if (sqw > oqw) {
      return INT2FIX(1);
    }
  }

  return INT2FIX(0);
}

#[](vidx) ⇒ Object 



532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
 
# File 'ext/bit_vector/bit_vector.c', line 532

static VALUE bits_get(VALUE self, VALUE vidx) {
  struct BitVector *bits;
  int64_t index;
  int bit;

  Data_Get_Struct(self, struct BitVector, bits);

  Check_Type(vidx, T_FIXNUM);

  index = FIX2LONG(vidx);
  if (index<0) {
    rb_raise(rb_eRangeError, "index range");
  }

  bit = bs_get(bits, index);

  return INT2FIX(bit);
}

#[]=(vidx, vobj) ⇒ Object 



552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
 
# File 'ext/bit_vector/bit_vector.c', line 552

static VALUE bits_set(VALUE self, VALUE vidx, VALUE vobj) {
  struct BitVector *bits;
  int64_t index;
  int bit;

  Data_Get_Struct(self, struct BitVector, bits);

  Check_Type(vidx, T_FIXNUM);

  index = FIX2LONG(vidx);
  if (index<0) {
    rb_raise(rb_eRangeError, "index range");
  }

  bit = to_bit(vobj);

  bs_set(bits, index, bit);

  return self;
}

#^(other) ⇒ Object 



706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
 
# File 'ext/bit_vector/bit_vector.c', line 706

static VALUE bits_xor(VALUE self, VALUE other) {
  VALUE obj;
  struct BitVector *bits, *rbits, *xbits;

  Data_Get_Struct(self,  struct BitVector, bits);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);
  *rbits = *bits;
  rbits->ptr = ALLOC_N(uint64_t, rbits->qws_len);
  memcpy(rbits->ptr, bits->ptr, rbits->qws_len*8);

  Data_Get_Struct(other, struct BitVector, xbits);
  bs_xor(rbits, xbits);

  return obj;
}

#bytesize ⇒ Object 



467
468
469
470
471
472
473
 
# File 'ext/bit_vector/bit_vector.c', line 467

static VALUE bits_bytesize(VALUE self) {
  struct BitVector *bits;

  Data_Get_Struct(self, struct BitVector, bits);

  return LONG2FIX(bs_bytesize(bits));
}

#clear ⇒ Object 



523
524
525
526
527
528
529
530
 
# File 'ext/bit_vector/bit_vector.c', line 523

static VALUE bits_clear(VALUE self) {
  struct BitVector *bits;

  Data_Get_Struct(self, struct BitVector, bits);
  memset(bits->ptr, 0, bits->qws_len*8);

  return self;
}

#clone ⇒ Object 



508
509
510
511
512
513
514
515
516
517
518
519
520
521
 
# File 'ext/bit_vector/bit_vector.c', line 508

static VALUE bits_dup(VALUE self) {
  struct BitVector *orig;
  struct BitVector *dups;
  VALUE obj;

  Data_Get_Struct(self, struct BitVector, orig);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, dups);
  *dups = *orig;
  dups->ptr = ALLOC_N(uint64_t, dups->qws_len);
  memcpy(dups->ptr, orig->ptr, dups->qws_len*8);

  return obj;
}

#count ⇒ Object 



942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
 
# File 'ext/bit_vector/bit_vector.c', line 942

static VALUE bits_count(VALUE self) {
  struct BitVector *bits;
  uint64_t *ptr, qw;
  int64_t count;
  int64_t i;

  Data_Get_Struct(self,  struct BitVector, bits);

  count = 0;
  ptr = bits->ptr;
  for(i = 0 ; i < bits->qws_len; i++) {
    qw = *ptr++;
    __asm ( "mov %1, %%r8 \n"
          "bs_count: \n"
          "bsf %%r8, %%r11 \n"
          "jz bs_count_exit \n"
          "inc %0 \n"
          "btr %%r11, %%r8 \n"
          "jmp bs_count \n"
          "bs_count_exit: \n"
        : "=&r"(count) : "r"(qw) : "%r8", "cc", "memory"
    );
  }

  return LONG2FIX(count);
}

#dup ⇒ Object 



508
509
510
511
512
513
514
515
516
517
518
519
520
521
 
# File 'ext/bit_vector/bit_vector.c', line 508

static VALUE bits_dup(VALUE self) {
  struct BitVector *orig;
  struct BitVector *dups;
  VALUE obj;

  Data_Get_Struct(self, struct BitVector, orig);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, dups);
  *dups = *orig;
  dups->ptr = ALLOC_N(uint64_t, dups->qws_len);
  memcpy(dups->ptr, orig->ptr, dups->qws_len*8);

  return obj;
}

#each ⇒ Object 



927
928
929
930
931
932
933
934
935
936
937
938
939
940
 
# File 'ext/bit_vector/bit_vector.c', line 927

static VALUE bits_each(VALUE self) {
  struct BitVector *bits;
  int64_t idx;

  Data_Get_Struct(self,  struct BitVector, bits);

  for(idx=0; idx < bits->bit_len; idx++) {
    if (bs_get(bits, idx)) {
      rb_yield(LONG2FIX(idx));
    }
  }

  return self;
}

#get(vidx) ⇒ Object 



532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
 
# File 'ext/bit_vector/bit_vector.c', line 532

static VALUE bits_get(VALUE self, VALUE vidx) {
  struct BitVector *bits;
  int64_t index;
  int bit;

  Data_Get_Struct(self, struct BitVector, bits);

  Check_Type(vidx, T_FIXNUM);

  index = FIX2LONG(vidx);
  if (index<0) {
    rb_raise(rb_eRangeError, "index range");
  }

  bit = bs_get(bits, index);

  return INT2FIX(bit);
}

#index(vobj, voff) ⇒ Object

This method returns the index of the first bit set to the given value



575
576
577
578
579
580
581
582
583
584
585
586
587
588
 
# File 'ext/bit_vector/bit_vector.c', line 575

static VALUE bits_index(VALUE self, VALUE vobj, VALUE voff) {
  struct BitVector *bits;
  int64_t       pos, off;
  int           bit;

  Data_Get_Struct(self, struct BitVector, bits);
  bit = to_bit(vobj);
  Check_Type(voff, T_FIXNUM);
  off = FIX2LONG(voff);

  pos = bs_index(bits, bit, off);

  return (pos == -1) ? Qnil : LONG2FIX(pos);
}

#length ⇒ Object 



459
460
461
462
463
464
465
 
# File 'ext/bit_vector/bit_vector.c', line 459

static VALUE bits_length(VALUE self) {
  struct BitVector *bits;

  Data_Get_Struct(self, struct BitVector, bits);

  return LONG2FIX(bits->bit_len);
}

#max ⇒ Object 



816
817
818
819
820
821
822
823
824
825
826
827
828
829
 
# File 'ext/bit_vector/bit_vector.c', line 816

static VALUE bits_max(VALUE self) {
  struct BitVector *bits;
  int64_t index;

  Data_Get_Struct(self, struct BitVector, bits);

  index = bs_max(bits);

  if (index >= 0) {
    return LONG2FIX(index);
  } else {
    return Qnil;
  }
}

#min ⇒ Object 



831
832
833
834
835
836
837
838
839
840
841
842
843
844
 
# File 'ext/bit_vector/bit_vector.c', line 831

static VALUE bits_min(VALUE self) {
  struct BitVector *bits;
  int64_t index;

  Data_Get_Struct(self, struct BitVector, bits);

  index = bs_min(bits);

  if (index >= 0) {
    return LONG2FIX(index);
  } else {
    return Qnil;
  }
}

#nonzero? ⇒ Boolean

Returns:

  • (Boolean) 


799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
 
# File 'ext/bit_vector/bit_vector.c', line 799

static VALUE bits_nonzero(VALUE self) {
  struct BitVector *bits;
  uint64_t *ptr;
  int64_t i;

  Data_Get_Struct(self,  struct BitVector, bits);

  ptr = bits->ptr;
  for(i=0 ; i<bits->qws_len; i++) {
    if (*ptr++ != 0) {
      return Qtrue;
    }
  }

  return Qfalse;
}

#normalize ⇒ Object 



846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
 
# File 'ext/bit_vector/bit_vector.c', line 846

static VALUE bits_norm(VALUE self) {
  VALUE obj;
  struct BitVector *bits;
  int64_t index;

  obj = bits_dup(self);
  Data_Get_Struct(obj, struct BitVector, bits);

  index = bs_max(bits);
  if (index < 0) {
    index = 1;
  } else {
    index = index + 1;
  }
  bs_resize(bits, index);

  return obj;
}

#normalize! ⇒ Object 



865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
 
# File 'ext/bit_vector/bit_vector.c', line 865

static VALUE bits_normx(VALUE self) {
  struct BitVector *bits;
  int64_t index;

  Data_Get_Struct(self, struct BitVector, bits);

  index = bs_max(bits);

  if (index < 0) {
    index = 1;
  } else {
    index = index + 1;
  }
  bs_resize(bits, index);

  return self;
}

#off(*args) ⇒ Object 



646
647
648
649
650
651
652
653
654
655
656
657
 
# File 'ext/bit_vector/bit_vector.c', line 646

static VALUE bits_off(int argc, VALUE *argv, VALUE self) {
  struct BitVector *bits;
  int i;

  Data_Get_Struct(self, struct BitVector, bits);

  for(i=0; i<argc; i++) {
    bs_fill(argv[i], bits, 0);
  }

  return self;
}

#on(*args) ⇒ Object 



634
635
636
637
638
639
640
641
642
643
644
 
# File 'ext/bit_vector/bit_vector.c', line 634

static VALUE bits_on(int argc, VALUE *argv, VALUE self) {
  struct BitVector *bits;
  int i;
  Data_Get_Struct(self, struct BitVector, bits);

  for(i=0; i<argc; i++) {
    bs_fill(argv[i], bits, 1);
  }

  return self;
}

#set(vidx, vobj) ⇒ Object 



552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
 
# File 'ext/bit_vector/bit_vector.c', line 552

static VALUE bits_set(VALUE self, VALUE vidx, VALUE vobj) {
  struct BitVector *bits;
  int64_t index;
  int bit;

  Data_Get_Struct(self, struct BitVector, bits);

  Check_Type(vidx, T_FIXNUM);

  index = FIX2LONG(vidx);
  if (index<0) {
    rb_raise(rb_eRangeError, "index range");
  }

  bit = to_bit(vobj);

  bs_set(bits, index, bit);

  return self;
}

#size ⇒ Object 



459
460
461
462
463
464
465
 
# File 'ext/bit_vector/bit_vector.c', line 459

static VALUE bits_length(VALUE self) {
  struct BitVector *bits;

  Data_Get_Struct(self, struct BitVector, bits);

  return LONG2FIX(bits->bit_len);
}

#size=(obj) ⇒ Object 



475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
 
# File 'ext/bit_vector/bit_vector.c', line 475

static VALUE bits_resize(VALUE self, VALUE obj) {
  struct BitVector *bits;
  int64_t len;

  Check_Type(obj, T_FIXNUM);
  len = FIX2LONG(obj);
  if (len<1) {
    rb_raise(rb_eArgError, "array size");
  }

  Data_Get_Struct(self, struct BitVector, bits);
  bs_resize(bits, len);

  return self;
}

#slice(vidx) ⇒ Object

This method extracts a subset of the bit_vector



591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
 
# File 'ext/bit_vector/bit_vector.c', line 591

static VALUE bits_slice(VALUE self, VALUE vidx) {
  struct BitVector *bits;
  struct BitVector *slis;
  VALUE obj;
  VALUE vfirst, vend;
  int64_t first = 0, end = 0;
  int64_t ix, ox;

  Data_Get_Struct(self, struct BitVector, bits);

  /* Validate the range and extract start and end */

  if (rb_class_of(vidx)==rb_cRange) {
    vfirst = rb_funcall(vidx, id_first, 0);
    vend   = rb_funcall(vidx, id_end, 0);
    Check_Type(vfirst, T_FIXNUM);
    Check_Type(vend, T_FIXNUM);
    first = FIX2LONG(vfirst);
    end   = FIX2LONG(vend);
    if (rb_funcall(vidx, rb_intern("exclude_end?"), 0) == Qtrue) {
      end--;
    }
    if (first>end || first<0 || end<0) {
      rb_raise(rb_eRangeError, "not valid range");
    }
  } else {
    rb_raise(rb_eTypeError, "not valid index");
  }

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, slis);
  slis->bit_len = end - first + 1;
  slis->qws_len = (slis->bit_len+63)/64;
  slis->last_bit = slis->bit_len % 64;
  slis->ptr = ALLOC_N(uint64_t, slis->qws_len);

  /* Now copy the bits TBD use __asm */

  for (ix = first, ox = 0; ix <= end; ix++,ox++) {
    bs_set(slis, ox, bs_get(bits, ix));
  }
  return obj;
}

#to_ary ⇒ Object 



883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
 
# File 'ext/bit_vector/bit_vector.c', line 883

static VALUE bits_to_ary(VALUE self) {
  VALUE ary;
  struct BitVector *bits;
  int64_t from, to, index;

  Data_Get_Struct(self,  struct BitVector, bits);

  ary = rb_ary_new();

  for (index = 0; index != -1;) {
      index = bs_index(bits, 1, index);
      if (index < 0) break;
      from = index;
      to = from;
      do {
          index = bs_index(bits, 1, index+1);
          if (index == -1) break;
          if (index == to + 1) to = index;
      } while (index == to);

      if (from==to) {
        rb_ary_push(ary, LONG2FIX(from));
      } else {
        rb_ary_push(ary, rb_funcall(rb_cRange, id_new, 2, LONG2FIX(from), LONG2FIX(to)));
      }
  }
  return ary;
}

#to_bytes ⇒ Object 



912
913
914
915
916
917
918
919
920
921
922
923
924
925
 
# File 'ext/bit_vector/bit_vector.c', line 912

static VALUE bits_to_bytes(VALUE self) {
  struct BitVector *bits;
  VALUE rs;

  Data_Get_Struct(self, struct BitVector, bits);

  int64_t len = bs_bytesize(bits);

  rs = rb_str_new(0, len);

  memcpy(RSTRING_PTR(rs), bits->ptr, len);

  return rs;
}

#to_s ⇒ Object 



491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
 
# File 'ext/bit_vector/bit_vector.c', line 491

static VALUE bits_to_s(VALUE self) {
  struct BitVector *bits;
  unsigned char *ptr;
  int64_t i;
  VALUE str;

  Data_Get_Struct(self, struct BitVector, bits);
  str = rb_str_new(0, bits->bit_len);

  ptr = (unsigned char *)RSTRING_PTR(str);
  for(i=0; i<bits->bit_len; i++) {
    *ptr++ = bs_get(bits, i) ? '1' : '0';
  }

  return str;
}

#zero? ⇒ Boolean

Returns:

  • (Boolean) 


782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
 
# File 'ext/bit_vector/bit_vector.c', line 782

static VALUE bits_zero(VALUE self) {
  struct BitVector *bits;
  uint64_t *ptr;
  int64_t i;

  Data_Get_Struct(self,  struct BitVector, bits);

  ptr = bits->ptr;
  for(i=0 ; i<bits->qws_len; i++) {
    if (*ptr++ != 0) {
      return Qfalse;
    }
  }

  return Qtrue;
}

#|(other) ⇒ Object 



659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
 
# File 'ext/bit_vector/bit_vector.c', line 659

static VALUE bits_or(VALUE self, VALUE other) {
  VALUE obj;
  struct BitVector *bits, *rbits, *xbits;

  Data_Get_Struct(self, struct BitVector, bits);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);
  *rbits = *bits;
  rbits->ptr = ALLOC_N(uint64_t, rbits->qws_len);
  memcpy(rbits->ptr, bits->ptr, rbits->qws_len*8);

  Data_Get_Struct(other, struct BitVector, xbits);
  bs_or(rbits, xbits);

  return obj;
}

#~ ⇒ Object 



676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
 
# File 'ext/bit_vector/bit_vector.c', line 676

static VALUE bits_not(VALUE self) {
  VALUE obj;
  struct BitVector *bits, *rbits;

  Data_Get_Struct(self,  struct BitVector, bits);

  obj = Data_Make_Struct(CLASS_OF(self), struct BitVector, NULL, bits_free, rbits);
  *rbits = *bits;
  rbits->ptr = ALLOC_N(uint64_t, rbits->qws_len);
  memcpy(rbits->ptr, bits->ptr, rbits->qws_len*8);

  bs_not(rbits);

  return obj;
}