operator> (<iterator>)

测试在运算符的左侧的迭代器对象是否大于在运算符右侧的迭代器对象。

template<class RandomIterator> 
   bool operator>( 
      const reverse_iterator<RandomIterator>& _Left, 
      const reverse_iterator<RandomIterator>& _Right 
   );

参数

• _Left
  类型迭代器对象。

• _Right
  类型迭代器对象。

返回值

true，如果该表达式的左边比迭代器在表达式的右侧；大迭代器 false，如果它是小于或等于右侧的迭代器。

备注

一迭代器对象与另了极大，如果它寻址已在容器的其他迭代器对象处理的元素后面的元素。 一迭代器对象与另的不显著，则定位元素和其他迭代器对象相同或容器中的其他迭代器对象处理的元素出现之前的元素。

示例

// iterator_op_gt.cpp
// compile with: /EHsc
#include <iterator>
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;
   int i;

   vector<int> vec;
   for (i = 0 ; i < 6 ; ++i )  {
      vec.push_back ( 2 * i );
      }
   
   vector <int>::iterator vIter;

   cout << "The initial vector vec is: ( ";
   for ( vIter = vec.begin( ) ; vIter != vec.end( ); vIter++)
      cout << *vIter << " ";
   cout << ")." << endl;

   vector <int>::reverse_iterator rVPOS1 = vec.rbegin ( ), 
           rVPOS2 = vec.rbegin ( );
   
   cout << "The iterators rVPOS1 & rVPOS2 initially point to "
           << "the first element\n in the reversed sequence: "
           << *rVPOS1 << "." << endl;

   if ( rVPOS1 > rVPOS2 )
      cout << "The iterator rVPOS1 is greater than "
              << "the iterator rVPOS2." << endl;
   else
      cout << "The iterator rVPOS1 is less than or "
              << "equal to the iterator rVPOS2." << endl;

   rVPOS1++;
   cout << "The iterator rVPOS1 now points to the second "
           << "element\n in the reversed sequence: "
           << *rVPOS1 << "." << endl;

   if ( rVPOS1 > rVPOS2 )
      cout << "The iterator rVPOS1 is greater than "
              << "the iterator rVPOS2." << endl;
   else
      cout << "The iterator rVPOS1 is less than or "
              << "equal to the iterator rVPOS2." << endl;
}

要求

头文件： <iterator>

命名空间: std

请参见

参考

标准模板库