std::ranges::chunk_by_view<V,Pred>:: iterator :: operator++,--

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C++
Ranges library
Range adaptors
std::ranges::chunk_by_view
constexpr /*iterator*/ & operator ++ ( ) ;
(1) (since C++23)
constexpr /*iterator*/ operator ++ ( int ) ;
(2) (since C++23)
constexpr /*iterator*/ & operator -- ( ) requires ranges:: bidirectional_range < V > ;
(3) (since C++23)
constexpr /*iterator*/ operator -- ( int ) requires ranges:: bidirectional_range < V > ;
(4) (since C++23)

Increments or decrements the iterator .

Let parent_ , current_ , and next_ be the appropriate underlying (exposition-only) data-members of iterator .

Let find-next and find-prev be appropriate (exposition-only) member functions of ranges::chunk_by_view .

1) Equivalent to: 
current_ = next_;
next_ = parent_->/*find-next*/(current_);
return *this;
The behavior is undefined if before the call to this operator current_ is equal to next_ .
2) Equivalent to: auto tmp = * this ; ++* this ; return tmp ;
3) Equivalent to: 
next_ = current_;
current_ = parent_->/*find-prev*/(next_);
return *this;
4) Equivalent to: auto tmp = * this ; --* this ; return tmp ;

Parameters

(none)

Return value

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