A TupleStreamIterator<Tuple> is an "Input Iterator" that wraps a RowStreamIterator, parsing its elements into a sequence of StatusOr<Tuple> objects.
As an Input Iterator, the sequence may only be consumed once. See https://en.cppreference.com/w/cpp/named_req/InputIterator for more details.
Default constructing this object creates an instance that represents "end".
Each Row returned by the wrapped RowStreamIterator must be convertible to the specified Tuple template parameter.
Constructors
TupleStreamIterator()
Default constructs an "end" iterator.
TupleStreamIterator(RowStreamIterator, RowStreamIterator)
Creates an iterator that wraps the given RowStreamIterator range.
| Parameters | |
|---|---|
| Name | Description |
begin |
RowStreamIterator
|
end |
RowStreamIterator
|
Operators
operator*()
| Returns | |
|---|---|
| Type | Description |
reference | |
operator->()
| Returns | |
|---|---|
| Type | Description |
pointer | |
operator*() const
| Returns | |
|---|---|
| Type | Description |
const_reference | |
operator->() const
| Returns | |
|---|---|
| Type | Description |
const_pointer | |
operator++()
| Returns | |
|---|---|
| Type | Description |
TupleStreamIterator & | |
operator++(int)
| Parameter | |
|---|---|
| Name | Description |
|
int
|
| Returns | |
|---|---|
| Type | Description |
TupleStreamIterator | |
Type Aliases
iterator_category
Alias Of:
std::input_iterator_tag
Iterator type aliases
value_type
Alias Of:
StatusOr< Tuple >
Iterator type aliases
difference_type
Alias Of:
std::ptrdiff_t
Iterator type aliases
pointer
Alias Of:
value_type *
Iterator type aliases
reference
Alias Of:
value_type &
Iterator type aliases
const_pointer
Alias Of:
value_type const *
Iterator type aliases
const_reference
Alias Of:
value_type const &
Iterator type aliases