C++

参考

<iterator>

move_iterator

function template
<iterator>

std::relational operators (move_iterator)

(1)
template <class Iterator1, class Iterator2>  bool operator== (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
(2)
template <class Iterator1, class Iterator2>  bool operator!= (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
(3)
template <class Iterator1, class Iterator2>  bool operator<  (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
(4)
template <class Iterator1, class Iterator2>  bool operator<= (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
(5)
template <class Iterator1, class Iterator2>  bool operator>  (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
(6)
template <class Iterator1, class Iterator2>  bool operator>= (const move_iterator<Iterator1>& lhs,                   const move_iterator<Iterator2>& rhs);
Relational operators for move_iterator
Performs the appropriate comparison operation between the move_iterator objects lhs and rhs.

Internally, the function compares directly the base iterators using the following equivalent relational operator

operator on
move iterators		equivalent used on
base iterators
ma == mbba == bb
ma != mb!(ba == bb)
ma < mbba < bb
ma <= mb!(bb < ba)
ma > mbbb < ba
ma >= mb!(ba < bb)

These operators are overloaded in header <iterator>.

参数

lhs, rhs
move_iterator objects (to the left- and right-hand side of the operator, respectively) for whose base iterators the proper comparison operation is defined.

返回值

如果条件成立，则为 true；否则为 false。

数据竞争

Both objects, lhs and rhs, are accessed.

异常安全

Provides the same level of guarantee as the operation applied to the base iterators of lhs and rhs.

另见

move_iterator::operator+=
Advance iterator (public member function)
move_iterator::operator-=
递减迭代器 (public member function)