dart::BitVector::Iterator Class Reference

#include <bit_vector.h>

Inheritance diagram for dart::BitVector::Iterator:

Public Member Functions
	Iterator (BitVector *target)
	~Iterator ()
bool	Done () const
void	Advance ()
intptr_t	Current () const
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Friends
class	BitVector

Detailed Description

Definition at line 18 of file bit_vector.h.

Constructor & Destructor Documentation

Iterator()

dart::BitVector::Iterator::Iterator ( BitVector *  target )

inlineexplicit

Definition at line 20 of file bit_vector.h.

        : target_(target),
          bit_index_(-1),
          word_index_(0),
          current_word_(target->data_[0]) {
      ASSERT(target->data_length_ > 0);
      Advance();
    }

~Iterator()

dart::BitVector::Iterator::~Iterator ( )

inline

Definition at line 28 of file bit_vector.h.

{}

Member Function Documentation

Advance()

void dart::BitVector::Iterator::Advance

(

)

Definition at line 11 of file bit_vector.cc.

                                {
  ++bit_index_;
  // Skip zero words.
  if (current_word_ == 0) {
    do {
      ++word_index_;
      if (Done()) return;
      current_word_ = target_->data_[word_index_];
    } while (current_word_ == 0);
    bit_index_ = word_index_ * kBitsPerWord;
  }
  // Skip zero bytes.
  while ((current_word_ & 0xff) == 0) {
    current_word_ >>= 8;
    bit_index_ += 8;
  }
  // Skip zero bits.
  while ((current_word_ & 0x1) == 0) {
    current_word_ >>= 1;
    ++bit_index_;
  }
  current_word_ = current_word_ >> 1;
}

Current()

intptr_t dart::BitVector::Iterator::Current ( ) const

inline

Definition at line 33 of file bit_vector.h.

                             {
      ASSERT(!Done());
      return bit_index_;
    }

Done()

bool dart::BitVector::Iterator::Done ( ) const

inline

Definition at line 30 of file bit_vector.h.

{ return word_index_ >= target_->data_length_; }

Friends And Related Function Documentation

BitVector

friend class BitVector

friend

Definition at line 44 of file bit_vector.h.

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The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/bit_vector.h
• third_party/dart-lang/sdk/runtime/vm/bit_vector.cc