CRTP base class providing shared functionality for union array implementations. More...

#include <union_array.hpp>

Inheritance diagram for sparrow::union_array_crtp_base< DERIVED >:

Collaboration diagram for sparrow::union_array_crtp_base< DERIVED >:

Public Types
using	self_type = union_array_crtp_base<DERIVED>

using	derived_type = DERIVED

using	inner_value_type = array_traits::inner_value_type

using	value_type = array_traits::const_reference

using	const_reference = array_traits::const_reference

using	functor_type = detail::layout_bracket_functor<derived_type, value_type>

using	const_functor_type = detail::layout_bracket_functor<const derived_type, value_type>

using	iterator = functor_index_iterator<functor_type>

using	const_iterator = functor_index_iterator<const_functor_type>

using	const_reverse_iterator = std::reverse_iterator<const_iterator>

using	size_type = std::size_t

using	type_id_buffer_type = u8_buffer<std::uint8_t>

Public Member Functions
constexpr std::optional< std::string_view >	name () const
	Gets the optional name of the union array.

SPARROW_CONSTEXPR_CLANG_17 std::optional< key_value_view >	metadata () const
	Gets the metadata associated with the union array.

SPARROW_CONSTEXPR_CLANG_17 value_type	at (size_type i) const
	Gets element at specified position with bounds checking.

SPARROW_CONSTEXPR_CLANG_17 value_type	operator[] (size_type i) const
	Gets element at specified position without bounds checking.

SPARROW_CONSTEXPR_CLANG_17 value_type	operator[] (size_type i)
	Gets mutable element at specified position.

SPARROW_CONSTEXPR_CLANG_17 value_type	front () const
	Gets reference to the first element.

SPARROW_CONSTEXPR_CLANG_17 value_type	back () const
	Gets reference to the last element.

constexpr bool	empty () const
	Checks if the union array is empty.

constexpr size_type	size () const
	Gets the number of elements in the union array.

constexpr iterator	begin ()
	Gets iterator to the beginning of the array.

constexpr iterator	end ()
	Gets iterator to the end of the array.

constexpr const_iterator	begin () const
	Gets const iterator to the beginning of the array.

constexpr const_iterator	end () const
	Gets const iterator to the end of the array.

constexpr const_iterator	cbegin () const
	Gets const iterator to the beginning of the array.

constexpr const_iterator	cend () const
	Gets const iterator to the end of the array.

constexpr const_reverse_iterator	rbegin () const
	Gets reverse iterator to the beginning of reversed array.

constexpr const_reverse_iterator	rend () const
	Gets reverse iterator to the end of reversed array.

constexpr const_reverse_iterator	crbegin () const
	Gets const reverse iterator to the beginning of reversed array.

constexpr const_reverse_iterator	crend () const
	Gets const reverse iterator to the end of reversed array.

constexpr void	zero_null_values (const inner_value_type &value)
	Sets all null values to the specified value.

template<std::ranges::input_range R>
constexpr auto	type_id_map_from_child_to_type_id (const std::optional< R > &child_index_to_type_id) -> type_id_map

Protected Types
using	type_id_map = std::array<std::uint8_t, TYPE_ID_MAP_SIZE>

using	children_type = std::vector<cloning_ptr<array_wrapper>>

Protected Types inherited from sparrow::crtp_base< DERIVED >
using	derived_type

Protected Member Functions
constexpr children_type	make_children (arrow_proxy &proxy)
	Creates child array wrappers from Arrow proxy.

	union_array_crtp_base (arrow_proxy proxy)
	Protected constructor from Arrow proxy.

constexpr	union_array_crtp_base (const self_type &rhs)
	Copy constructor.

constexpr self_type &	operator= (const self_type &rhs)
	Copy assignment operator.

constexpr	union_array_crtp_base (self_type &&rhs)=default

constexpr self_type &	operator= (self_type &&rhs)=default

constexpr arrow_proxy &	get_arrow_proxy ()
	Gets mutable reference to the Arrow proxy.

constexpr const arrow_proxy &	get_arrow_proxy () const
	Gets const reference to the Arrow proxy.

Protected Member Functions inherited from sparrow::crtp_base< DERIVED >
constexpr derived_type &	derived_cast ()

constexpr const derived_type &	derived_cast () const

Static Protected Member Functions
static constexpr type_id_map	parse_type_id_map (std::string_view format_string)
	Parses type ID mapping from Arrow format string.

template<std::ranges::input_range R>
static constexpr type_id_map	type_id_map_from_child_to_type_id (const std::optional< R > &child_index_to_type_id)
	Creates type ID mapping from child index to type ID mapping.

template<std::ranges::input_range R> requires (std::convertible_to<std::ranges::range_value_t<R>, std::uint8_t>)
static constexpr std::string	make_format_string (bool dense, std::size_t n, const std::optional< R > &child_index_to_type_id)
	Creates Arrow format string for union arrays.

Protected Attributes
arrow_proxy	m_proxy
	Internal Arrow proxy.

const std::uint8_t *	p_type_ids
	Pointer to type ID buffer.

children_type	m_children
	Child array wrappers.

std::array< std::uint8_t, TYPE_ID_MAP_SIZE >	m_type_id_map
	Type ID to child index mapping.

Static Protected Attributes
static constexpr size_t	TYPE_ID_MAP_SIZE = 256

Friends
class	detail::array_access

Detailed Description

template<class DERIVED>
class sparrow::union_array_crtp_base< DERIVED >

CRTP base class providing shared functionality for union array implementations.

This class implements the common interface and logic shared between dense and sparse union arrays. Union arrays can store values of different types in a single array, with each element having an associated type ID that indicates which child array contains the actual value.

Key features:

Type-safe heterogeneous storage
Efficient type dispatch using type ID mapping
STL-compatible container interface
Support for both dense and sparse union layouts
Arrow format compatibility

The union array consists of:

Type ID buffer: Maps each element to its corresponding child array
Child arrays: Store the actual values for each supported type
Type ID mapping: Translates type IDs to child array indices

Template Parameters

DERIVED The derived union array type (dense_union_array or sparse_union_array)

Precondition: DERIVED must inherit from this class (CRTP pattern); DERIVED must implement element_offset() method

Postcondition: Provides complete union array interface; Maintains Arrow union format compatibility; Thread-safe for read operations

//Union arrays can store different types
dense_union_array union_arr = create_union_with_int_and_string();
 
//Access elements (type is determined at runtime)
auto elem = union_arr[0];
if(elem.has_value()) {
// elem could be int or string depending on type ID
}
 
//Iteration over heterogeneous elements
for(const auto& element : union_arr) {
// Process element of unknown type
}

Definition at line 124 of file union_array.hpp.

Member Typedef Documentation

◆ children_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::children_type = std::vector<cloning_ptr<array_wrapper>>

protected

Definition at line 411 of file union_array.hpp.

◆ const_functor_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::const_functor_type = detail::layout_bracket_functor<const derived_type, value_type>

Definition at line 134 of file union_array.hpp.

◆ const_iterator

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::const_iterator = functor_index_iterator<const_functor_type>

Definition at line 136 of file union_array.hpp.

◆ const_reference

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::const_reference = array_traits::const_reference

Definition at line 132 of file union_array.hpp.

◆ const_reverse_iterator

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::const_reverse_iterator = std::reverse_iterator<const_iterator>

Definition at line 137 of file union_array.hpp.

◆ derived_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::derived_type = DERIVED

Definition at line 129 of file union_array.hpp.

◆ functor_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::functor_type = detail::layout_bracket_functor<derived_type, value_type>

Definition at line 133 of file union_array.hpp.

◆ inner_value_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::inner_value_type = array_traits::inner_value_type

Definition at line 130 of file union_array.hpp.

◆ iterator

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::iterator = functor_index_iterator<functor_type>

Definition at line 135 of file union_array.hpp.

◆ self_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::self_type = union_array_crtp_base<DERIVED>

Definition at line 128 of file union_array.hpp.

◆ size_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::size_type = std::size_t

Definition at line 138 of file union_array.hpp.

◆ type_id_buffer_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::type_id_buffer_type = u8_buffer<std::uint8_t>

Definition at line 140 of file union_array.hpp.

◆ type_id_map

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::type_id_map = std::array<std::uint8_t, TYPE_ID_MAP_SIZE>

protected

Definition at line 363 of file union_array.hpp.

◆ value_type

template<class DERIVED>

using sparrow::union_array_crtp_base< DERIVED >::value_type = array_traits::const_reference

Definition at line 131 of file union_array.hpp.

Constructor & Destructor Documentation

◆ union_array_crtp_base() [1/3]

template<class DERIVED>

sparrow::union_array_crtp_base< DERIVED >::union_array_crtp_base ( arrow_proxy proxy )

explicitprotected

Protected constructor from Arrow proxy.

Parameters

proxy Arrow proxy containing union array data and schema

Precondition: proxy must contain valid Arrow union array and schema; proxy format must be valid union format

Postcondition: Array is initialized with data from proxy; Type ID mapping is parsed and cached; Child arrays are created and accessible

Definition at line 1031 of file union_array.hpp.

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◆ union_array_crtp_base() [2/3]

template<class DERIVED>

sparrow::union_array_crtp_base< DERIVED >::union_array_crtp_base ( const self_type & rhs )

constexprprotected

Copy constructor.

Parameters

rhs	Source union array to copy from

Precondition: rhs must be in a valid state

Postcondition: This array contains a copy of rhs data; Child arrays and type mapping are reconstructed

Definition at line 1040 of file union_array.hpp.

◆ union_array_crtp_base() [3/3]

template<class DERIVED>

sparrow::union_array_crtp_base< DERIVED >::union_array_crtp_base ( self_type && rhs )

constexprprotecteddefault

Member Function Documentation

◆ at()

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 value_type sparrow::union_array_crtp_base< DERIVED >::at ( size_type i ) const

nodiscard

Gets element at specified position with bounds checking.

Parameters

i	Index of the element to access

Returns: Value from the appropriate child array

Precondition: i must be < size()

Postcondition: Returns valid value from child array indicated by type ID; Value type depends on the type ID at position i

Exceptions

std::out_of_range if i >= size()

◆ back()

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 auto sparrow::union_array_crtp_base< DERIVED >::back ( ) const

nodiscard

Gets reference to the last element.

Returns: Value from the appropriate child array for last element

Precondition: Array must not be empty (!empty())

Postcondition: Returns valid value from child array; Equivalent to (*this)[size() - 1]

Definition at line 1153 of file union_array.hpp.

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◆ begin() [1/2]

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::begin ( )

nodiscardconstexpr

Gets iterator to the beginning of the array.

Returns: Iterator pointing to the first element

Postcondition: Iterator is valid for array traversal; For empty array, equals end()

Definition at line 1087 of file union_array.hpp.

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◆ begin() [2/2]

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::begin ( ) const

nodiscardconstexpr

Gets const iterator to the beginning of the array.

Returns: Const iterator pointing to the first element

Postcondition: Iterator is valid for array traversal; For empty array, equals end()

Definition at line 1099 of file union_array.hpp.

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◆ cbegin()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::cbegin ( ) const

nodiscardconstexpr

Gets const iterator to the beginning of the array.

Returns: Const iterator pointing to the first element

Postcondition: Iterator is valid for array traversal; Guarantees const iterator even for non-const array

Definition at line 1111 of file union_array.hpp.

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◆ cend()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::cend ( ) const

nodiscardconstexpr

Gets const iterator to the end of the array.

Returns: Const iterator pointing past the last element

Postcondition: Iterator marks the end of the array range; Guarantees const iterator even for non-const array

Definition at line 1117 of file union_array.hpp.

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◆ crbegin()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::crbegin ( ) const

nodiscardconstexpr

Gets const reverse iterator to the beginning of reversed array.

Returns: Const reverse iterator pointing to the last element

Postcondition: Iterator is valid for reverse traversal; Guarantees const iterator even for non-const array

Definition at line 1135 of file union_array.hpp.

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◆ crend()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::crend ( ) const

nodiscardconstexpr

Gets const reverse iterator to the end of reversed array.

Returns: Const reverse iterator pointing before the first element

Postcondition: Iterator marks the end of reverse traversal; Guarantees const iterator even for non-const array

Definition at line 1141 of file union_array.hpp.

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◆ empty()

template<class DERIVED>

bool sparrow::union_array_crtp_base< DERIVED >::empty ( ) const

nodiscardconstexpr

Checks if the union array is empty.

Returns: true if array contains no elements, false otherwise

Postcondition: Return value equals (size() == 0)

Definition at line 1081 of file union_array.hpp.

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◆ end() [1/2]

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::end ( )

nodiscardconstexpr

Gets iterator to the end of the array.

Returns: Iterator pointing past the last element

Postcondition: Iterator marks the end of the array range; Not dereferenceable

Definition at line 1093 of file union_array.hpp.

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◆ end() [2/2]

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::end ( ) const

nodiscardconstexpr

Gets const iterator to the end of the array.

Returns: Const iterator pointing past the last element

Postcondition: Iterator marks the end of the array range; Not dereferenceable

Definition at line 1105 of file union_array.hpp.

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◆ front()

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 auto sparrow::union_array_crtp_base< DERIVED >::front ( ) const

nodiscard

Gets reference to the first element.

Returns: Value from the appropriate child array for first element

Precondition: Array must not be empty (!empty())

Postcondition: Returns valid value from child array; Equivalent to (*this)[0]

Definition at line 1147 of file union_array.hpp.

◆ get_arrow_proxy() [1/2]

template<class DERIVED>

arrow_proxy & sparrow::union_array_crtp_base< DERIVED >::get_arrow_proxy ( )

nodiscardconstexprprotected

Gets mutable reference to the Arrow proxy.

Returns: Mutable reference to internal Arrow proxy

Postcondition: Returns valid reference to Arrow proxy

Definition at line 1019 of file union_array.hpp.

◆ get_arrow_proxy() [2/2]

template<class DERIVED>

const arrow_proxy & sparrow::union_array_crtp_base< DERIVED >::get_arrow_proxy ( ) const

nodiscardconstexprprotected

Gets const reference to the Arrow proxy.

Returns: Const reference to internal Arrow proxy

Postcondition: Returns valid const reference to Arrow proxy

Definition at line 1025 of file union_array.hpp.

◆ make_children()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::make_children ( arrow_proxy & proxy )

constexprprotected

Creates child array wrappers from Arrow proxy.

Parameters

proxy Arrow proxy containing child array data

Returns: Vector of child array wrappers

Precondition: proxy must contain valid child array data

Postcondition: Returns valid children collection; Each child corresponds to a union member type

Definition at line 1159 of file union_array.hpp.

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◆ make_format_string()

template<class DERIVED>
requires (std::convertible_to<std::ranges::range_value_t<R>, std::uint8_t>)

template<std::ranges::input_range R>
requires (std::convertible_to<std::ranges::range_value_t<R>, std::uint8_t>)

std::string sparrow::union_array_crtp_base< DERIVED >::make_format_string	(	bool	dense,
		std::size_t	n,
		const std::optional< R > &	child_index_to_type_id )

staticconstexprprotected

Creates Arrow format string for union arrays.

Template Parameters

R	Range type for type ID mapping

Parameters

dense	Whether this is a dense union (true) or sparse (false)
n	Number of child arrays
range	Optional type ID mapping range

Returns: Arrow format string for the union

Precondition: If range is provided, its size must equal n or be 0; Range elements must be convertible to std::uint8_t

Postcondition: Returns valid Arrow format string ("+ud:" or "+us:" prefix)

Exceptions

std::invalid_argument if range size doesn't match n

Definition at line 977 of file union_array.hpp.

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◆ metadata()

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 std::optional< key_value_view > sparrow::union_array_crtp_base< DERIVED >::metadata ( ) const

nodiscard

Gets the metadata associated with the union array.

Returns: Optional view of key-value metadata pairs from Arrow schema

Postcondition: Returns nullopt if no metadata is set; Returned view remains valid while array exists

Definition at line 1013 of file union_array.hpp.

◆ name()

template<class DERIVED>

std::optional< std::string_view > sparrow::union_array_crtp_base< DERIVED >::name ( ) const

nodiscardconstexpr

Gets the optional name of the union array.

Returns: Optional string view of the array name from Arrow schema

Postcondition: Returns nullopt if no name is set; Returned string view remains valid while array exists

Definition at line 1007 of file union_array.hpp.

◆ operator=() [1/2]

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::operator= ( const self_type & rhs )

constexprprotected

Copy assignment operator.

Parameters

rhs	Source union array to copy from

Returns: Reference to this array

Precondition: rhs must be in a valid state

Postcondition: This array contains a copy of rhs data; Previous data is properly released; Child arrays and type mapping are reconstructed

Definition at line 1046 of file union_array.hpp.

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◆ operator=() [2/2]

template<class DERIVED>

self_type & sparrow::union_array_crtp_base< DERIVED >::operator= ( self_type && rhs )

constexprprotecteddefault

◆ operator[]() [1/2]

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 auto sparrow::union_array_crtp_base< DERIVED >::operator[] ( size_type i )

nodiscard

Gets mutable element at specified position.

Parameters

i	Index of the element to access

Returns: Value from the appropriate child array

Precondition: i must be < size()

Postcondition: Returns value from child array indicated by type ID; Value type depends on the type ID at position i

Definition at line 1069 of file union_array.hpp.

◆ operator[]() [2/2]

template<class DERIVED>

SPARROW_CONSTEXPR_CLANG_17 auto sparrow::union_array_crtp_base< DERIVED >::operator[] ( size_type i ) const

nodiscard

Gets element at specified position without bounds checking.

Parameters

i	Index of the element to access

Returns: Value from the appropriate child array

Precondition: i must be < size()

Postcondition: Returns value from child array indicated by type ID; Value type depends on the type ID at position i

Definition at line 1059 of file union_array.hpp.

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◆ parse_type_id_map()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::parse_type_id_map ( std::string_view format_string )

staticconstexprprotected

Parses type ID mapping from Arrow format string.

Parameters

format_string Arrow format string containing type ID mappings

Returns: Array mapping type IDs to child indices

Precondition: format_string must be valid Arrow union format ("+du:" or "+su:" prefix)

Postcondition: Returns valid type ID to child index mapping; Mapping is used for efficient type dispatch

Definition at line 921 of file union_array.hpp.

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◆ rbegin()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::rbegin ( ) const

nodiscardconstexpr

Gets reverse iterator to the beginning of reversed array.

Returns: Const reverse iterator pointing to the last element

Postcondition: Iterator is valid for reverse traversal; For empty array, equals rend()

Definition at line 1123 of file union_array.hpp.

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◆ rend()

template<class DERIVED>

auto sparrow::union_array_crtp_base< DERIVED >::rend ( ) const

nodiscardconstexpr

Gets reverse iterator to the end of reversed array.

Returns: Const reverse iterator pointing before the first element

Postcondition: Iterator marks the end of reverse traversal; Not dereferenceable

Definition at line 1129 of file union_array.hpp.

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◆ size()

template<class DERIVED>

std::size_t sparrow::union_array_crtp_base< DERIVED >::size ( ) const

nodiscardconstexpr

Gets the number of elements in the union array.

Returns: Number of elements in the array

Postcondition: Returns non-negative value; Equals the number of type IDs in the type buffer

Definition at line 1075 of file union_array.hpp.

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◆ type_id_map_from_child_to_type_id() [1/2]

template<class DERIVED>

template<std::ranges::input_range R>

static constexpr type_id_map sparrow::union_array_crtp_base< DERIVED >::type_id_map_from_child_to_type_id ( const std::optional< R > & child_index_to_type_id )

staticconstexprprotected

Creates type ID mapping from child index to type ID mapping.

Template Parameters

R	Range type containing type IDs

Parameters

child_index_to_type_id Optional mapping from child index to type ID

Returns: Inverse mapping from type ID to child index

Postcondition: If no mapping provided, uses identity mapping (0->0, 1->1, etc.); Returned mapping enables efficient child array lookup

◆ type_id_map_from_child_to_type_id() [2/2]

template<class DERIVED>

template<std::ranges::input_range R>

auto sparrow::union_array_crtp_base< DERIVED >::type_id_map_from_child_to_type_id ( const std::optional< R > & child_index_to_type_id ) -> type_id_map

constexpr

Definition at line 948 of file union_array.hpp.

◆ zero_null_values()

template<class DERIVED>

void sparrow::union_array_crtp_base< DERIVED >::zero_null_values ( const inner_value_type & value )

inlineconstexpr

Sets all null values to the specified value.

This operation modifies the underlying data values but not the validity bitmap. The bitmap remains unchanged, so the elements will still be considered null. Only the actual stored values are replaced.

Parameters

value The value to assign to null elements

Postcondition: All null positions contain the specified value; Validity bitmap remains unchanged; Elements are still logically null despite having a value

Definition at line 354 of file union_array.hpp.

Friends And Related Symbol Documentation

◆ detail::array_access

template<class DERIVED>

friend class detail::array_access

friend

Definition at line 488 of file union_array.hpp.

Member Data Documentation

◆ m_children

template<class DERIVED>

children_type sparrow::union_array_crtp_base< DERIVED >::m_children

protected

Child array wrappers.

Definition at line 485 of file union_array.hpp.

◆ m_proxy

template<class DERIVED>

arrow_proxy sparrow::union_array_crtp_base< DERIVED >::m_proxy

protected

Internal Arrow proxy.

Definition at line 483 of file union_array.hpp.

◆ m_type_id_map

template<class DERIVED>

std::array<std::uint8_t, TYPE_ID_MAP_SIZE> sparrow::union_array_crtp_base< DERIVED >::m_type_id_map

protected

Type ID to child index mapping.

Definition at line 486 of file union_array.hpp.

◆ p_type_ids

template<class DERIVED>

const std::uint8_t* sparrow::union_array_crtp_base< DERIVED >::p_type_ids

protected

Pointer to type ID buffer.

Definition at line 484 of file union_array.hpp.

◆ TYPE_ID_MAP_SIZE

template<class DERIVED>

size_t sparrow::union_array_crtp_base< DERIVED >::TYPE_ID_MAP_SIZE = 256

staticconstexprprotected

Definition at line 361 of file union_array.hpp.

The documentation for this class was generated from the following file:

/home/runner/work/sparrow/sparrow/include/sparrow/union_array.hpp

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Protected Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ children_type

◆ const_functor_type

◆ const_iterator

◆ const_reference

◆ const_reverse_iterator

◆ derived_type

◆ functor_type

◆ inner_value_type

◆ iterator

◆ self_type

◆ size_type

◆ type_id_buffer_type

◆ type_id_map

◆ value_type

Constructor & Destructor Documentation

◆ union_array_crtp_base() [1/3]

◆ union_array_crtp_base() [2/3]

◆ union_array_crtp_base() [3/3]

Member Function Documentation

◆ at()

◆ back()

◆ begin() [1/2]

◆ begin() [2/2]

◆ cbegin()

◆ cend()

◆ crbegin()

◆ crend()

◆ empty()

◆ end() [1/2]

◆ end() [2/2]

◆ front()

◆ get_arrow_proxy() [1/2]

◆ get_arrow_proxy() [2/2]

◆ make_children()

◆ make_format_string()

◆ metadata()

◆ name()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ parse_type_id_map()

◆ rbegin()

◆ rend()

◆ size()

◆ type_id_map_from_child_to_type_id() [1/2]

◆ type_id_map_from_child_to_type_id() [2/2]

◆ zero_null_values()

Friends And Related Symbol Documentation

◆ detail::array_access

Member Data Documentation

◆ m_children

◆ m_proxy

◆ m_type_id_map

◆ p_type_ids

◆ TYPE_ID_MAP_SIZE