operator- (std::move_iterator<Iter>, std::move_sentinel)

From cppreference.net

template < std:: sized_sentinel_for < Iter > S > friend constexpr std:: iter_difference_t < Iter > operator - ( const std:: move_sentinel < S > & s, const move_iterator & i ) ;	(1)	(C++20以降)
template < std:: sized_sentinel_for < Iter > S > friend constexpr std:: iter_difference_t < Iter > operator - ( const move_iterator & i, const std:: move_sentinel < S > & s ) ;	(2)	(C++20以降)

move_iterator と move_sentinel の間の距離を返します。

これらの関数テンプレートは通常の unqualified lookup や qualified lookup では可視化されず、引数が std:: move_iterator < Iter > を関連クラスとして持つ場合にのみ、 argument-dependent lookup によって発見されます。

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Feature test macros (C++20)
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Member functions
move_iterator::move_iterator
move_iterator::operator=
move_iterator::base
move_iterator::operator* move_iterator::operator->
move_iterator::operator[]
move_iterator::operator++ move_iterator::operator+ move_iterator::operator+= move_iterator::operator-- move_iterator::operator- move_iterator::operator-=
Non-member functions
operator== operator!= operator< operator<= operator> operator>= operator<=> (until C++20) (C++20)
operator== (move_sentinel) (C++20)
operator+
operator-
operator- (move_sentinel) (C++20)
iter_move (C++20)
iter_swap (C++20)
make_move_iterator (C++11)

目次

i	-	std:: move_iterator < Iter >
s	-	std:: move_sentinel < S > 、ただし `S` は std:: sized_sentinel_for < Iter > を満たす