entt::basic_common_view< Type, Checked, Get, Exclude > Class Template Reference

Basic storage view implementation. More...

#include <view.hpp>

Public Types
using	common_type = Type
	Common type among all storage types.
using	entity_type = typename Type::entity_type
	Underlying entity identifier.
using	size_type = std::size_t
	Unsigned integer type.
using	difference_type = std::ptrdiff_t
	Signed integer type.
using	iterator = internal::view_iterator<common_type, Checked, Get, Exclude>
	Forward iterator type.

Public Member Functions
void	refresh () noexcept
	Updates the internal leading view if required.
const common_type *	handle () const noexcept
	Returns the leading storage of a view, if any.
size_type	size_hint () const noexcept
	Estimates the number of entities iterated by the view.
iterator	begin () const noexcept
	Returns an iterator to the first entity of the view.
iterator	end () const noexcept
	Returns an iterator that is past the last entity of the view.
entity_type	front () const noexcept
	Returns the first entity of the view, if any.
entity_type	back () const noexcept
	Returns the last entity of the view, if any.
iterator	find (const entity_type entt) const noexcept
	Finds an entity.
	operator bool () const noexcept
	Checks if a view is fully initialized.
bool	contains (const entity_type entt) const noexcept
	Checks if a view contains an entity.

Friends
template<typename Return, typename View, typename Other, std::size_t... GLhs, std::size_t... ELhs, std::size_t... GRhs, std::size_t... ERhs>
Return	internal::view_pack (const View &, const Other &, std::index_sequence< GLhs... >, std::index_sequence< ELhs... >, std::index_sequence< GRhs... >, std::index_sequence< ERhs... >)

Detailed Description

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>
class entt::basic_common_view< Type, Checked, Get, Exclude >

Basic storage view implementation.

Warning

For internal use only, backward compatibility not guaranteed.

Template Parameters

Type	Common type among all storage types.
Checked	True to enable the tombstone check, false otherwise.
Get	Number of storage iterated by the view.
Exclude	Number of storage used to filter the view.

Definition at line 233 of file view.hpp.

Member Typedef Documentation

common_type

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

using entt::basic_common_view< Type, Checked, Get, Exclude >::common_type = Type

Common type among all storage types.

Definition at line 301 of file view.hpp.

difference_type

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

using entt::basic_common_view< Type, Checked, Get, Exclude >::difference_type = std::ptrdiff_t

Signed integer type.

Definition at line 307 of file view.hpp.

entity_type

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

using entt::basic_common_view< Type, Checked, Get, Exclude >::entity_type = typename Type::entity_type

Underlying entity identifier.

Definition at line 303 of file view.hpp.

iterator

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

using entt::basic_common_view< Type, Checked, Get, Exclude >::iterator = internal::view_iterator<common_type, Checked, Get, Exclude>

Forward iterator type.

Definition at line 309 of file view.hpp.

size_type

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

using entt::basic_common_view< Type, Checked, Get, Exclude >::size_type = std::size_t

Unsigned integer type.

Definition at line 305 of file view.hpp.

Member Function Documentation

back()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

entity_type entt::basic_common_view< Type, Checked, Get, Exclude >::back ( ) const

inlinenodiscardnoexcept

Returns the last entity of the view, if any.

Returns

The last entity of the view if one exists, the null entity otherwise.

Definition at line 371 of file view.hpp.

begin()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

iterator entt::basic_common_view< Type, Checked, Get, Exclude >::begin ( ) const

inlinenodiscardnoexcept

Returns an iterator to the first entity of the view.

If the view is empty, the returned iterator will be equal to end().

Returns

An iterator to the first entity of the view.

Definition at line 344 of file view.hpp.

contains()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

bool entt::basic_common_view< Type, Checked, Get, Exclude >::contains ( const entity_type entt ) const

inlinenodiscardnoexcept

Checks if a view contains an entity.

Parameters

entt	A valid identifier.

Returns

True if the view contains the given entity, false otherwise.

Definition at line 405 of file view.hpp.

end()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

iterator entt::basic_common_view< Type, Checked, Get, Exclude >::end ( ) const

inlinenodiscardnoexcept

Returns an iterator that is past the last entity of the view.

Returns

An iterator to the entity following the last entity of the view.

Definition at line 352 of file view.hpp.

find()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

iterator entt::basic_common_view< Type, Checked, Get, Exclude >::find ( const entity_type entt ) const

inlinenodiscardnoexcept

Finds an entity.

Parameters

entt	A valid identifier.

Returns

An iterator to the given entity if it's found, past the end iterator otherwise.

Definition at line 388 of file view.hpp.

front()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

entity_type entt::basic_common_view< Type, Checked, Get, Exclude >::front ( ) const

inlinenodiscardnoexcept

Returns the first entity of the view, if any.

Returns

The first entity of the view if one exists, the null entity otherwise.

Definition at line 361 of file view.hpp.

handle()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

const common_type * entt::basic_common_view< Type, Checked, Get, Exclude >::handle ( ) const

inlinenodiscardnoexcept

Returns the leading storage of a view, if any.

Returns

The leading storage of the view.

Definition at line 325 of file view.hpp.

operator bool()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

entt::basic_common_view< Type, Checked, Get, Exclude >::operator bool ( ) const

inlineexplicitnodiscardnoexcept

Checks if a view is fully initialized.

Returns

True if the view is fully initialized, false otherwise.

Definition at line 396 of file view.hpp.

refresh()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

void entt::basic_common_view< Type, Checked, Get, Exclude >::refresh ( )

inlinenoexcept

Updates the internal leading view if required.

Definition at line 312 of file view.hpp.

size_hint()

template<typename Type, bool Checked, std::size_t Get, std::size_t Exclude>

size_type entt::basic_common_view< Type, Checked, Get, Exclude >::size_hint ( ) const

inlinenodiscardnoexcept

Estimates the number of entities iterated by the view.

Returns

Estimated number of entities iterated by the view.

Definition at line 333 of file view.hpp.

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

• src/entt/entity/view.hpp