std::ranges::slide_view<V>:: iterator <Const>:: operator++,--,+=,-=

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Ranges library
Range adaptors
constexpr /*iterator*/ & operator ++ ( ) ;
(1) (since C++23)
constexpr /*iterator*/ operator ++ ( int ) ;
(2) (since C++23)
constexpr /*iterator*/ & operator -- ( )
requires ranges:: bidirectional_range < Base > ;
(3) (since C++23)
constexpr /*iterator*/ operator -- ( int )
requires ranges:: bidirectional_range < Base > ;
(4) (since C++23)
constexpr /*iterator*/ & operator + = ( difference_type n )
requires ranges:: random_access_range < Base > ;
(5) (since C++23)
constexpr /*iterator*/ & operator - = ( difference_type n )
requires ranges:: random_access_range < Base > ;
(6) (since C++23)

Advances or decrements the iterator .

Let current_ and last_ele_ be the underlying iterators to the begin and end of the sliding window.

1) Equivalent to:
current_ = ranges::next(current_);
last_ele_ = ranges::next(last_ele_); // if last_ele_ is present
return *this;
Before the invocation, the current_ and last_ele_ (if present) must be incrementable.
2) Equivalent to: auto tmp = * this ; ++* this ; return tmp ;
3) Equivalent to:
current_ = ranges::prev(current_);
last_ele_ = ranges::prev(last_ele_); // if last_ele_ is present
return *this;
Before the invocation, the current_ and last_ele_ (if present) must be decrementable.
4) Equivalent to: auto tmp = * this ; --* this ; return tmp ;
5) Equivalent to:
current_ = current_ + n;
last_ele_ = last_ele_ + n; // if last_ele_ is present
return *this;
Before the invocation, the expressions current_ + n and last_ele_ + n (if last_ele_ is present) must have well-defined behavior.
6) Equivalent to:
current_ = current_ - n;
last_ele_ = last_ele_ - n; // if last_ele_ is present
return *this;
Before the invocation, the expressions current_ - n and last_ele_ - n (if last_ele_ is present) must have well-defined behavior.

Parameters

n - position relative to current location

Return value

1,3,5,6) * this
2,4) a copy of * this that was made before the change

Example

See also

performs iterator arithmetic
(function)