std::ranges::chunk_view<V>::iterator<Const>::operator++,--,+=,-=
constexpr & operator++();
| (1) | (since C++23) |
constexpr operator++( int );
| (2) | (since C++23) |
constexpr & operator--()
requires ranges::bidirectional_range<Base>;
| (3) | (since C++23) |
constexpr operator--( int )
requires ranges::bidirectional_range<Base>;
| (4) | (since C++23) |
constexpr & operator+=( difference_type x )
requires ranges::random_access_range<Base>;
| (5) | (since C++23) |
constexpr & operator-=( difference_type x )
requires ranges::random_access_range<Base>;
| (6) | (since C++23) |
Advances or decrements the iterator.
Let current_, end_, and n_ be the underlying data members of chunk_view::iterator.
1) Equivalent to:
missing_ = ranges::advance(current_, n_, end_);
return *this;
Before the invocation the expression
current_ != end_ must be
true, otherwise the behavior is undefined.
2) Equivalent to: auto tmp = *this; ++*this; return tmp;.
3) Equivalent to:
ranges::advance(current_, missing_ - n_);
missing_ = 0;
return *this;
4) Equivalent to: auto tmp = *this; --*this; return tmp;.
true
6) Equivalent to: return *this += -x;.
Parameters
| x | - | a 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
|
(C++23) | performs iterator arithmetic
(function) |