reverse_iterator::pointer

要素へのポインターを提供する型は reverse_iteratorによってアドレス。

typedef typename iterator_traits<RandomIterator>::pointer pointer;

解説

型は、反復子の特性の型名の iterator_traits<RandomIterator>::pointerのシノニムです。

使用例

// reverse_iterator_pointer.cpp
// compile with: /EHsc
#include <iterator>
#include <algorithm>
#include <vector>
#include <utility>
#include <iostream>

int main( )
{
   using namespace std;

   typedef vector<pair<int,int> > pVector;
   pVector vec;
   vec.push_back( pVector::value_type( 1,2 ) );
   vec.push_back( pVector::value_type( 3,4 ) );
   vec.push_back( pVector::value_type( 5,6 ) );

   pVector::iterator pvIter;
   cout << "The vector vec of integer pairs is:\n" << "( ";
   for ( pvIter = vec.begin ( ) ; pvIter != vec.end ( ); pvIter++)
      cout << "( " << pvIter -> first << ", " << pvIter -> second << ") ";
   cout << ")" << endl;

   pVector::reverse_iterator rpvIter;
   cout << "\nThe vector vec reversed is:\n" << "( ";
   for ( rpvIter = vec.rbegin( ) ; rpvIter != vec.rend( ); rpvIter++)
      cout << "( " << rpvIter -> first << ", " << rpvIter -> second << ") ";
   cout << ")" << endl;

   pVector::iterator pos = vec.begin ( );
   pos++;
   cout << "\nThe iterator pos points to:\n"
        << "( " << pos -> first << ", "
        << pos -> second << " )" << endl;

   pVector::reverse_iterator rpos (pos);
   cout << "\nThe iterator rpos points to:\n"
        << "( " << rpos -> first << ", "
        << rpos -> second << " )" << endl;
}

必要条件

ヘッダー: <iterator>

名前空間: std

参照

関連項目

reverse_iterator Class

標準テンプレート ライブラリ