operator+,-(ranges::slide_view::iterator)
friend constexpr /*iterator*/ operator+( const /*iterator*/& i,
difference_type n )
requires ranges::random_access_range<Base>;
| (1) | (since C++23) |
friend constexpr /*iterator*/ operator+( difference_type n,
const /*iterator*/& i )
requires ranges::random_access_range<Base>;
| (2) | (since C++23) |
friend constexpr /*iterator*/ operator-( const /*iterator*/& i,
difference_type n )
requires ranges::random_access_range<Base>;
| (3) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& i,
const /*iterator*/& j )
requires std::sized_sentinel_for<ranges::iterator_t<Base>,
ranges::iterator_t<Base>>;
| (4) | (since C++23) |
Performs iterator arithmetic.
1,2) Equivalent to:
auto r = i; r += n; return r;.
3) Equivalent to:
4) Let auto r = i; r -= n; return r;.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_;, iflast_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
See also
| advances or decrements the underlying iterators (public member function) |
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