Construct an iterator.
1) Default constructor. Value-initializes the underlying data-members as follows:parent_
with nullptr, current_
with ranges::iterator_t<V>()
, next_
with ranges::iterator_t<V>()
.chunk_by_view::begin
and chunk_by_view::end
. This constructor is not accessible to users. Initializes: parent_
with std::addressof(parent)
, current_
with current
, next_
with next
.parent | - | a parent object |
current, next | - | iterators |
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