operator+,-(ranges::zip_view::iterator)
friend constexpr /*iterator*/ operator+( const /*iterator*/& i, difference_type n )
requires /*all-random-access*/<Const, Views...>;
| (1) | (since C++23) |
friend constexpr /*iterator*/ operator+( difference_type n, const /*iterator*/& i )
requires /*all-random-access*/<Const, Views...>;
| (2) | (since C++23) |
friend constexpr /*iterator*/ operator-( const /*iterator*/& i, difference_type n )
requires /*all-random-access*/<Const, Views...>;
| (3) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& i,
const /*iterator*/& j )
requires (std::sized_sentinel_for<
ranges::iterator_t</*maybe-const*/<Const, Views>>,
ranges::iterator_t</*maybe-const*/<Const, Views>>>
and ...);
| (4) | (since C++23) |
Let current_ denote the underlying tuple-like object of iterators to elements of adapted views.
1,2) Returns the iterator
i incremented by n. Equivalent to: auto r = i; r += n; return r;.
3) Returns the iterator
i decremented by n. Equivalent to: auto r = i; r -= n; return r;.
4) Let
DIST(k) be difference_type(std::get<k>(i.current_) - std::get<k>(j.current_)). Returns the smallest absolute value among DIST(n) for all integers 0 <= n < sizeof...(Views).These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when zip_view::iterator<Const> is an associated class of the arguments.
Parameters
| i, j | - | the iterators. |
| n | - | position relative to current location. |
Return value
1,2) a copy of
i that is advanced by n
3) a copy of
i that is advanced by -n
4) the distance between
i and j
Example
See also
| advances or decrements the underlying iterators (public member function) |
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