Namespace entt

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Namespaces

Classes

	as_group	Converts a registry to a group.
	as_is_t	Empty class type used to request the as-is policy.
	as_ref_t	Empty class type used to request the as ref policy.
	as_view	Converts a registry to a view.
	as_void_t	Empty class type used to request the as void policy.
	basic_associative_container	Basic STL-compatible associative container traits.
	basic_collector	Collector.
	basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >	Collector.
	basic_collector<>	Collector.
	basic_container	Basic STL-compatible container traits.
	basic_continuous_loader	Utility class for continuous loading.
	basic_dynamic_associative_container	Basic STL-compatible dynamic associative container traits.
	basic_dynamic_container	Basic STL-compatible dynamic container traits.
	basic_group	Group.
	basic_group< Entity, exclude_t< Exclude... >, get_t< Get... > >	Non-owning group.
	basic_group< Entity, exclude_t< Exclude... >, get_t< Get... >, Owned... >	Owning group.
	basic_handle	Non-owning handle to an entity.
	basic_hashed_string	Zero overhead unique identifier.
	basic_observer	Observer.
	basic_organizer	Utility class for creating a static task graph.
	basic_registry	Fast and reliable entity-component system.
	basic_runtime_view	Runtime view.
	basic_sequence_container	Basic STL-compatible sequence container traits.
	basic_snapshot	Utility class to create snapshots from a registry.
	basic_snapshot_loader	Utility class to restore a snapshot as a whole.
	basic_sparse_set	Basic sparse set implementation.
	basic_storage	Basic storage implementation.
	basic_storage< Entity, Type, std::enable_if_t< is_empty_v< Type > > >	Basic storage implementation.
	basic_view	View.
	basic_view< Entity, exclude_t< Exclude... >, Component... >	Multi component view.
	basic_view< Entity, exclude_t<>, Component >	Single component view specialization.
	choice_t	Utility class to disambiguate overloaded functions.
	choice_t< 0 >	Utility class to disambiguate overloaded functions.
	connect_arg_t	Used to wrap a function or a member of a specified type.
	connection	Connection class.
	constness_as	Transcribes the constness of a type to another type.
	constness_as< To, const From >	Transcribes the constness of a type to another type.
	container_traits	Container traits.
	delegate	Basic delegate implementation.
	delegate< Ret(Args...)>	Utility class to use to send around functions and members.
	dense_storage_tag	Dense storage category tag.
	dispatcher	Basic dispatcher implementation.
	dynamic_associative_key_only_container	STL-compatible dynamic associative key-only container traits.
	dynamic_associative_key_value_container	STL-compatible dynamic key-value associative container traits.
	dynamic_sequence_container	STL-compatible dynamic sequence container traits.
	emitter	General purpose event emitter.
	empty_storage_tag	Empty storage category tag.
	entt_traits	Entity traits.
	entt_traits< std::uint32_t >	Entity traits for a 32 bits entity identifier.
	entt_traits< std::uint64_t >	Entity traits for a 64 bits entity identifier.
	entt_traits< Type, std::enable_if_t< std::is_enum_v< Type > > >	Entity traits for enumeration types.
	exclude_t	Alias for exclusion lists.
	family	Dynamic identifier generator.
	fixed_sequence_container	STL-compatible fixed sequence container traits.
	get_t	Alias for lists of observed components.
	has_meta_associative_container_traits	Provides the member constant `value` to true if support for meta associative containers is enabled for the given type, false otherwise.
	has_meta_associative_container_traits< Type, std::void_t< typename meta_associative_container_traits< Type >::key_type > >	Provides the member constant `value` to true if support for meta associative containers is enabled for the given type, false otherwise.
	has_meta_sequence_container_traits	Provides the member constant `value` to true if support for meta sequence containers is enabled for the given type, false otherwise.
	has_meta_sequence_container_traits< Type, std::void_t< typename meta_sequence_container_traits< Type >::value_type > >	Provides the member constant `value` to true if support for meta sequence containers is enabled for the given type, false otherwise.
	identifier	Types identifiers.
	identity	Identity function object (waiting for C++20).
	insertion_sort	Function object for performing insertion sort.
	is_applicable	Same as std::is_invocable, but with tuples.
	is_applicable< Func, std::tuple< Args... > >	Same as std::is_invocable, but with tuples.
	is_applicable_r	Same as std::is_invocable_r, but with tuples for arguments.
	is_applicable_r< Ret, Func, std::tuple< Args... > >	Same as std::is_invocable_r, but with tuples for arguments.
	is_empty	Provides the member constant `value` to true if a given type is empty and the empty type optimization is enabled, false otherwise.
	is_equality_comparable	Provides the member constant `value` to true if a given type is equality comparable, false otherwise.
	is_equality_comparable< Type, std::void_t< decltype(std::declval< Type >()==std::declval< Type >())> >	Provides the member constant `value` to true if a given type is equality comparable, false otherwise.
	is_key_only_meta_associative_container	Provides the member constant `value` to true if a meta associative container claims to wrap a key-only type, false otherwise.
	is_key_only_meta_associative_container< Type, std::void_t< typename meta_associative_container_traits< Type >::mapped_type > >	Provides the member constant `value` to true if a meta associative container claims to wrap a key-only type, false otherwise.
	is_meta_pointer_like	Provides the member constant `value` to true if a given type is a pointer-like type from the point of view of the meta system, false otherwise.
	is_meta_pointer_like< std::shared_ptr< Type > >	Makes `std::shared_ptr`s of any type pointer-like types for the meta system.
	is_meta_pointer_like< std::unique_ptr< Type, Args... > >	Makes `std::unique_ptr`s of any type pointer-like types for the meta system.
	is_meta_pointer_like< Type * >	Makes plain pointers pointer-like types for the meta system.
	matcher	Grouping matcher.
	member_class	Extracts the class of a non-static member object or function.
	meta_any	Opaque wrapper for values of any type.
	meta_associative_container	Proxy object for associative containers.
	meta_associative_container_traits	Traits class template to be specialized to enable support for meta associative containers.
	meta_associative_container_traits< std::map< Key, Value, Args... > >	Meta associative container traits for `std::map`s of any type.
	meta_associative_container_traits< std::set< Key, Args... > >	Meta associative container traits for `std::set`s of any type.
	meta_associative_container_traits< std::unordered_map< Key, Value, Args... > >	Meta associative container traits for `std::unordered_map`s of any type.
	meta_associative_container_traits< std::unordered_set< Key, Args... > >	Meta associative container traits for `std::unordered_set`s of any type.
	meta_base	Opaque wrapper for meta base classes.
	meta_conv	Opaque wrapper for meta conversion functions.
	meta_ctor	Opaque wrapper for meta constructors.
	meta_ctx	Opaque container for a meta context.
	meta_data	Opaque wrapper for meta data.
	meta_factory	Meta factory to be used for reflection purposes.
	meta_factory< Type >	Basic meta factory to be used for reflection purposes.
	meta_factory< Type, Spec... >	Extended meta factory to be used for reflection purposes.
	meta_func	Opaque wrapper for meta functions.
	meta_handle	Opaque pointers to instances of any type.
	meta_prop	Opaque wrapper for meta properties of any type.
	meta_range	Iterable range to use to iterate all types of meta objects.
	meta_sequence_container	Proxy object for sequence containers.
	meta_sequence_container_traits	Traits class template to be specialized to enable support for meta sequence containers.
	meta_sequence_container_traits< std::array< Type, N > >	Meta sequence container traits for `std::array`s of any type.
	meta_sequence_container_traits< std::vector< Type, Args... > >	Meta sequence container traits for `std::vector`s of any type.
	meta_type	Opaque wrapper for meta types.
	monostate	Minimal implementation of the monostate pattern.
	null_t	Null object for all entity identifiers.
	overloaded	Helper type for visitors.
	process	Base class for processes.
	process_adaptor	Adaptor for lambdas and functors to turn them into processes.
	radix_sort	Function object for performing LSD radix sort.
	resource_cache	Simple cache for resources of a given type.
	resource_handle	Shared resource handle.
	resource_loader	Base class for resource loaders.
	scheduler	Cooperative scheduler for processes.
	scoped_connection	Scoped connection class.
	service_locator	Service locator, nothing more.
	sigh	Unmanaged signal handler.
	sigh< Ret(Args...)>	Unmanaged signal handler.
	sigh_storage_mixin	Mixin type to use to add signal support to storage types.
	sink	Sink class.
	sink< Ret(Args...)>	Sink class.
	size_of	A type-only `sizeof` wrapper that returns 0 where `sizeof` complains.
	size_of< Type, std::void_t< decltype(sizeof(Type))> >	A type-only `sizeof` wrapper that returns 0 where `sizeof` complains.
	std_sort	Function object to wrap `std::sort` in a class type.
	storage_adapter_mixin	Mixin type to use to wrap basic storage classes.
	storage_traits	Applies component-to-storage conversion and defines the resulting type as the member typedef type.
	type_hash	Type hash.
	type_info	Implementation specific information about a type.
	type_list	A class to use to push around lists of types, nothing more.
	type_list_cat	Primary template isn't defined on purpose.
	type_list_cat< type_list< Type... > >	Concatenates multiple type lists.
	type_list_cat< type_list< Type... >, type_list< Other... >, List... >	Concatenates multiple type lists.
	type_list_cat<>	Concatenates multiple type lists.
	type_list_contains	Provides the member constant `value` to true if a type list contains a given type, false otherwise.
	type_list_contains< type_list< Type... >, Other >	Provides the member constant `value` to true if a type list contains a given type, false otherwise.
	type_list_unique	Primary template isn't defined on purpose.
	type_list_unique< type_list< Type, Other... > >	Removes duplicates types from a type list.
	type_list_unique< type_list<> >	Removes duplicates types from a type list.
	type_name	Type name.
	type_seq	Type sequential identifier.
	view_pack	View pack.
	y_combinator	Basic implementation of a y-combinator.

Functions

	get_as_tuple	Gets the element associated with an entity from a storage, if any.
	invoke	Helper to create a listener that directly invokes a member function.
	meta	Utility function to use for reflection.
	operator!= Overload	Compares two hashed strings.
	operator!= Overload	Compares the contents of two type info objects.
	operator!= Overload	Compares a null object and an entity identifier of any type.
	operator!= Overload	Compares two handles.
	operator!= Overload	Checks if two wrappers differ in their content.
	operator!= Overload	Checks if two meta objects refer to the same type.
	operator!= Overload	Compares the contents of two delegates.
	operator""_hs	User defined literal for hashed strings.
	operator""_hws	User defined literal for hashed wstrings.
	operator+	Concatenates multiple type lists.
	operator==	Compares a null object and an entity identifier of any type.
	operator\| Overload	Combines two views in a pack.
	operator\| Overload	Combines a view with a pack.
	overload Overload	Constant utility to disambiguate overloaded members of a class.
	overload Overload	Constant utility to disambiguate overloaded functions.
	resolve Overload	Returns the meta type associated with a given type.
	resolve Overload	Returns the meta type associated with a given identifier, if any.
	resolve Overload	Returns the meta type associated with a given type info object, if any.
	to_entity	Returns the entity associated with a given component.
	to_integral	Converts an entity type to its underlying type.
	type_id Overload	Returns the type info object for a given type.

Enums

entity

Default entity identifier.

Typedefs

Typedefs (fwd.hpp)

using id_type = std::uint32_t

Alias declaration for type identifiers.

Mentioned in:

Configuration / ENTT_ID_TYPE

Core Functionalities / Type info

Core Functionalities / Tag

Entity Component System / Cloning a registry

Entity Component System / Stamping an entity

Entity Component System / Runtime views

Resource Management / The resource, the loader and the cache

Typedefs (hashed_string.hpp)

using hashed_string = basic_hashed_string< char >

Aliases for common character types.

Mentioned in:

Configuration / ENTT_HS_SUFFIX and ENTT_HWS_SUFFIX

Core Functionalities / Hashed strings

Core Functionalities / Wide characters

Core Functionalities / Monostate

Resource Management / The resource, the loader and the cache

Runtime Reflection System / Names and identifiers

Runtime Reflection System / Properties and meta objects

Frequently Asked Questions / Warning C4307: integral constant overflow

using hashed_wstring = basic_hashed_string< wchar_t >

Aliases for common character types.

Mentioned in:: Core Functionalities / Wide characters

Typedefs (type_traits.hpp)

	template <typename Type, typename> using unpack_as_t = Type	Using declaration to be used to repeat the same type a number of times equal to the size of a given parameter pack. Template Parameters `Type` - A type to repeat.
	template <auto Value> using integral_constant = std::integral_constant< decltype(Value), Value >	Wraps a static constant. Template Parameters `Value` - A static constant. Mentioned in: Core Functionalities / Integral constant
	template <id_type Value> using tag = integral_constant< Value >	Alias template to facilitate the creation of named values. Template Parameters `Value` - A constant value at least convertible to `id_type`. Mentioned in: Core Functionalities / Tag
	template <typename... List> using type_list_cat_t = typename type_list_cat< List... >::type	Helper type. Template Parameters `List` - Type lists to concatenate.
	template <typename Type> using type_list_unique_t = typename type_list_unique< Type >::type	Helper type. Template Parameters `Type` - A type list.
	template <typename To, typename From> using constness_as_t = typename constness_as< To, From >::type	Alias template to facilitate the transcription of the constness. Template Parameters `To` - The type to which to transcribe the constness. `From` - The type from which to transcribe the constness. Mentioned in: Core Functionalities / Constness as
	template <typename Member> using member_class_t = typename member_class< Member >::type	Helper type. Template Parameters `Member` - A pointer to a non-static member object or function. Mentioned in: Core Functionalities / Member class type

Typedefs (fwd.hpp)

	using sparse_set = basic_sparse_set< entity >	Alias declaration for the most common use case.
	template <typename... Args> using storage = basic_storage< entity, Args... >	Alias declaration for the most common use case. Template Parameters `Args` - Other template parameters.
	using registry = basic_registry< entity >	Alias declaration for the most common use case. Mentioned in: Getting Started / Code Example Entity Component System / A bitset-free entity-component system Entity Component System / The Registry, the Entity and the Component Entity Component System / Observe changes Entity Component System / Organizer Entity Component System / Cloning a registry Entity Component System / Stamping an entity
	using observer = basic_observer< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / They call me Reactive System
	using organizer = basic_organizer< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Organizer
	using handle = basic_handle< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Handle
	using const_handle = basic_handle< const entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Handle
	template <typename... Args> using handle_view = basic_handle< entity, Args... >	Alias declaration for the most common use case. Template Parameters `Args` - Other template parameters.
	template <typename... Args> using const_handle_view = basic_handle< const entity, Args... >	Alias declaration for the most common use case. Template Parameters `Args` - Other template parameters.
	using snapshot = basic_snapshot< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Snapshot: complete vs continuous
	using snapshot_loader = basic_snapshot_loader< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Snapshot loader
	using continuous_loader = basic_continuous_loader< entity >	Alias declaration for the most common use case. Mentioned in: Entity Component System / Continuous loader
	template <typename... Args> using view = basic_view< entity, Args... >	Alias declaration for the most common use case. Template Parameters `Args` - Other template parameters. Mentioned in: Entity Component System / Organizer Entity Component System / Types: const, non-const and all in between
	using runtime_view = basic_runtime_view< entity >	Alias declaration for the most common use case.
	template <typename... Args> using group = basic_group< entity, Args... >	Alias declaration for the most common use case. Template Parameters `Args` - Other template parameters.

Variables

Variables (monostate.hpp)

template <id_type Value>
monostate< Value > monostate_v = {}

Helper variable template.

Template Parameters: Value - Value used to differentiate between different variables.

Variables (type_traits.hpp)

	template <class Type> constexpr auto size_of_v = size_of<Type>::value	Helper variable template. Template Parameters `Type` - The type of which to return the size. Mentioned in: Core Functionalities / Size of
	template <auto Value, typename> constexpr auto unpack_as_v = Value	Helper variable template to be used to repeat the same value a number of times equal to the size of a given parameter pack. Template Parameters `Value` - A value to repeat.
	template <std::size_t N> constexpr choice_t< N > choice {}	Variable template for the choice trick. Template Parameters `N` - Number of choices available.
	template <class List, typename Type> constexpr auto type_list_contains_v = type_list_contains<List, Type>::value	Helper variable template. Template Parameters `List` - Type list. `Type` - Type to look for.
	template <class Type> constexpr auto is_equality_comparable_v = is_equality_comparable<Type>::value	Helper variable template. Template Parameters `Type` - Potentially equality comparable type.
	template <typename Func, typename Args> constexpr auto is_applicable_v = is_applicable<Func, Args>::value	Helper variable template. Template Parameters `Func` - A valid function type. `Args` - The list of arguments to use to probe the function type.
	template <typename Ret, typename Func, typename Args> constexpr auto is_applicable_r_v = is_applicable_r<Ret, Func, Args>::value	Helper variable template. Template Parameters `Ret` - The type to which the return type of the function should be convertible. `Func` - A valid function type. `Args` - The list of arguments to use to probe the function type.
	template <typename Type> constexpr auto is_empty_v = is_empty<Type>::value	Helper variable template. Template Parameters `Type` - Potential empty type.

Variables (entity.hpp)

constexpr null_t null {}

Compile-time constant for null entities.

Internal details not to be documented. There exist implicit conversions from this variable to entity identifiers of any allowed type. Similarly, there exist comparision operators between the null entity and any other entity identifier.

Mentioned in:

Entity Component System / Null entity

Frequently Asked Questions / How can I represent hierarchies with my components?

Variables (observer.hpp)

constexpr basic_collector collector {}

Variable template used to ease the definition of collectors.

Variables (utility.hpp)

template <typename... Type>
constexpr exclude_t< Type... > exclude {}

Variable template for exclusion lists.

Template Parameters: Type - List of types.

Mentioned in:

Entity Component System / They call me Reactive System

Entity Component System / Views

Entity Component System / Full-owning groups

Entity Component System / Partial-owning groups

Entity Component System / Non-owning groups

Entity Component System / Nested groups

template <typename... Type>
constexpr get_t< Type... > get {}

Variable template for lists of observed components.

Template Parameters: Type - List of types.

Mentioned in:

Entity Component System / Groups

Entity Component System / Partial-owning groups

Entity Component System / Non-owning groups

Entity Component System / Nested groups

Variables (policy.hpp)

constexpr as_ref_t as_ref

Disambiguation tag.

Variables (type_traits.hpp)

	template <typename Type> constexpr auto has_meta_sequence_container_traits_v = has_meta_sequence_container_traits<Type>::value	Helper variable template. Template Parameters `Type` - Potentially sequence container type.
	template <typename Type> constexpr auto has_meta_associative_container_traits_v = has_meta_associative_container_traits<Type>::value	Helper variable template. Template Parameters `Type` - Potentially associative container type.
	template <typename Type> constexpr auto is_key_only_meta_associative_container_v = is_key_only_meta_associative_container<Type>::value	Helper variable template. Template Parameters `Type` - Potentially key-only meta associative container type.
	template <typename Type> constexpr auto is_meta_pointer_like_v = is_meta_pointer_like<Type>::value	Helper variable template. Template Parameters `Type` - Potentially pointer-like type.

Variables (delegate.hpp)

template <auto Func>
constexpr connect_arg_t< Func > connect_arg {}

Constant of type connect_arg_t used to disambiguate calls.

Mentioned in:: Events, Signals And Everything In Between / Delegate

Source

Line 13 in src/entt/core/algorithm.hpp.

Namespace entt

Description

Namespaces

Classes

Functions

Enums

Typedefs

Typedefs (fwd.hpp)

Typedefs (hashed_string.hpp)

Typedefs (type_traits.hpp)

Typedefs (fwd.hpp)

Variables

Variables (monostate.hpp)

Variables (type_traits.hpp)

Variables (entity.hpp)

Variables (observer.hpp)

Variables (utility.hpp)

Variables (policy.hpp)

Variables (type_traits.hpp)

Variables (delegate.hpp)

Source

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