std::ranges::join_view<V>::iterator<Const>::operator++,--
constexpr & operator++();
| (1) | (since C++20) |
constexpr void operator++( int );
| (2) | (since C++20) |
constexpr operator++( int )
requires && ranges::forward_range<Base> &&
ranges::forward_range<ranges::range_reference_t<Base>>;
| (3) | (since C++20) |
constexpr iterator& operator--()
requires && ranges::bidirectional_range<Base> &&
ranges::bidirectional_range<ranges::range_reference_t<Base>> &&
ranges::common_range<ranges::range_reference_t<Base>>;
| (4) | (since C++20) |
constexpr operator--( int )
requires && ranges::bidirectional_range<Base> &&
ranges::bidirectional_range<ranges::range_reference_t<Base>> &&
ranges::common_range<ranges::range_reference_t<Base>>;
| (5) | (since C++20) |
Increments or decrements the underlying iterator.
Let inner_ and outer_ be the underlying iterators, and parent_ be the pointer to parent ranges::join_view, the constant /*ref-is-glvalue*/ be std::is_reference_v<ranges::range_reference_t<Base>>.
1) Let
/*inner-range*/ be:
-
*outer_, if /*ref-is-glvalue*/ == true;
-
*parent_->inner_ otherwise.
Equivalent to:
auto&& inner_rng = ;
if (++inner_ == ranges::end(inner_rng)) {
++outer_;
satisfy();
}
return *this;
2) Equivalent to: ++*this.
3) Equivalent to:
auto tmp = *this;
++*this;
return tmp;
4) Equivalent to:
if (outer_ == ranges::end(parent_->base_))
inner_ = ranges::end(*--outer_);
while (inner_ == ranges::begin(*outer_))
inner_ = ranges::end(*--outer_);
--inner_;
return *this;
5) Equivalent to:
auto tmp = *this;
--*this;
return tmp;
Parameters
(none).
Return value
1,4) *this
2) (none)
3,5) a copy of *this that was made before the change