operator-(reverse_iterator)
template< class Iterator > typename reverse_iterator<Iterator>::difference_type operator-( const reverse_iterator<Iterator>& lhs, const reverse_iterator<Iterator>& rhs ); | ? | (until C++11) |
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template< class Iterator1, class Iterator2 > auto operator-( const reverse_iterator<Iterator1>& lhs, const reverse_iterator<Iterator2>& rhs ) -> decltype(rhs.base() - lhs.base()); | ? | (since C++11) (until C++17) |
template< class Iterator1, class Iterator2 > constexpr auto operator-( const reverse_iterator<Iterator1>& lhs, const reverse_iterator<Iterator2>& rhs ) -> decltype(rhs.base() - lhs.base()); | ? | (since C++17) |
返回两个迭代器适配器之间的距离。
参数
lhs, rhs | - | iterator adaptors to compute the difference of |
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返回值
rhs.base() - lhs.base()...
例
? cppreference.com在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
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