operator+,-(ranges::slide_view::iterator)
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< cpp | ranges | slide view | iterator
friend constexpr /*iterator*/ operator+( const /*iterator*/& i, difference_type n ) |
(1) | (since C++23) |
friend constexpr /*iterator*/ operator+( difference_type n, const /*iterator*/& i ) |
(2) | (since C++23) |
friend constexpr /*iterator*/ operator-( const /*iterator*/& i, difference_type n ) |
(3) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& i, const /*iterator*/& j ) |
(4) | (since C++23) |
Performs iterator arithmetic.
1,2) Equivalent to: auto r = i; r += n; return r;.
3) Equivalent to: auto r = i; r -= n; return r;.
4) Let
current_
and last_ele_
be the underlying iterators to the begin and end of the sliding window, respectively. Equivalent to:
- return x.last_ele_ - y.last_ele_;, if
last_ele_
is present. Otherwise, - return x.current_ - y.current_;.
These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when slide_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) An incremented iterator.
3) A decremented iterator.
4) A distance between given iterators.
Example
This section is incomplete Reason: no example |
See also
advances or decrements the underlying iterators (public member function) |