template<typename Iter>
key_iterator struct
Iterator adapter for accessing keys in map-like containers.
| Template parameters | |
|---|---|
| Iter | The underlying iterator type for key-value pairs |
Provides an iterator that dereferences to the key component of key-value pairs in map-like containers.
Constructors, destructors, conversion operators
- key_iterator(Iter it) explicit
- Construct a key iterator from an underlying iterator.
Public functions
- auto operator*() const -> const auto & -> auto
- Dereference to get the key (const version)
- auto operator*() -> const auto & -> auto
- Dereference to get the key (non-const version)
- auto operator++() -> key_iterator & -> auto
- Pre-increment operator.
- auto operator++(int) -> key_iterator -> auto
- Post-increment operator.
Function documentation
template<typename Iter>
py::
Construct a key iterator from an underlying iterator.
| Parameters | |
|---|---|
| it in | The underlying iterator for key-value pairs |
template<typename Iter>
auto py::
Dereference to get the key (const version)
| Returns | const auto& Reference to the key |
|---|
template<typename Iter>
auto py::
Dereference to get the key (non-const version)
| Returns | const auto& Reference to the key |
|---|
template<typename Iter>
auto py::
Pre-increment operator.
| Returns | key_ |
|---|
template<typename Iter>
auto py::
Post-increment operator.
| Returns | key_ |
|---|