|
| | basic_poly () noexcept |
| | Default constructor.
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| |
| template<typename Type , typename... Args> |
| | basic_poly (std::in_place_type_t< Type >, Args &&...args) |
| | Constructs a poly by directly initializing the new object.
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| |
| template<typename Type , typename = std::enable_if_t<!std::is_same_v<std::remove_cv_t<std::remove_reference_t<Type>>, basic_poly>>> |
| | basic_poly (Type &&value) noexcept |
| | Constructs a poly from a given value.
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| |
| const type_info & | type () const noexcept |
| | Returns the object type if any, type_id<void>() otherwise.
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| |
| const void * | data () const noexcept |
| | Returns an opaque pointer to the contained instance.
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| |
| void * | data () noexcept |
| | Returns an opaque pointer to the contained instance.
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| |
| template<typename Type , typename... Args> |
| void | emplace (Args &&...args) |
| | Replaces the contained object by creating a new instance directly.
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| |
| void | reset () |
| | Destroys contained object.
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| |
| | operator bool () const noexcept |
| | Returns false if a poly is empty, true otherwise.
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| |
| concept_type * | operator-> () noexcept |
| | Returns a pointer to the underlying concept.
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| |
| const concept_type * | operator-> () const noexcept |
| | Returns a pointer to the underlying concept.
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| |
| basic_poly | as_ref () noexcept |
| | Aliasing constructor.
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| |
| basic_poly | as_ref () const noexcept |
| | Aliasing constructor.
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| |
template<typename Concept, std::size_t Len, std::size_t Align>
class entt::basic_poly< Concept, Len, Align >
Static polymorphism made simple and within everyone's reach.
Static polymorphism is a very powerful tool in C++, albeit sometimes cumbersome to obtain.
This class aims to make it simple and easy to use.
- Note
- Both deduced and defined static virtual tables are supported.
Moreover, the poly class template also works with unmanaged objects.
- Template Parameters
-
| Concept | Concept descriptor. |
| Len | Size of the storage reserved for the small buffer optimization. |
| Align | Optional alignment requirement. |
Definition at line 192 of file poly.hpp.
template<typename Concept , std::size_t Len, std::size_t Align>
template<typename Type , typename... Args>
| entt::basic_poly< Concept, Len, Align >::basic_poly |
( |
std::in_place_type_t< Type > |
, |
|
|
Args &&... |
args |
|
) |
| |
|
inlineexplicit |
Constructs a poly by directly initializing the new object.
- Template Parameters
-
| Type | Type of object to use to initialize the poly. |
| Args | Types of arguments to use to construct the new instance. |
- Parameters
-
| args | Parameters to use to construct the instance. |
Definition at line 213 of file poly.hpp.
template<typename Concept , std::size_t Len, std::size_t Align>
template<typename Type , typename = std::enable_if_t<!std::is_same_v<std::remove_cv_t<std::remove_reference_t<Type>>, basic_poly>>>
Constructs a poly from a given value.
- Template Parameters
-
| Type | Type of object to use to initialize the poly. |
- Parameters
-
| value | An instance of an object to use to initialize the poly. |
Definition at line 223 of file poly.hpp.
template<typename Concept , std::size_t Len, std::size_t Align>
template<typename Type , typename... Args>
Replaces the contained object by creating a new instance directly.
- Template Parameters
-
| Type | Type of object to use to initialize the poly. |
| Args | Types of arguments to use to construct the new instance. |
- Parameters
-
| args | Parameters to use to construct the instance. |
Definition at line 254 of file poly.hpp.
