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) | (since C++20) |
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) | (since C++20) |
Returns the distance between a move_iterator and a move_sentinel.
These function templates are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::move_iterator<Iter> is an associated class of the arguments.
| i | - | std::move_iterator<Iter> |
| s | - | std::move_sentinel<S>, where S models std::sized_sentinel_for<Iter> |
s.base() - i.base()
i.base() - s.base()
|
(C++11) | computes the distance between two iterator adaptors (function template) |
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