operator+,-(ranges::zip_view::iterator)
From cppreference.com
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 ) |
(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
This section is incomplete Reason: no example |
See also
advances or decrements the underlying iterators (public member function) |