std::experimental::pmr:: polymorphic_allocator
From cppreference.com
<
cpp
|
experimental
|
Defined in header
<experimental/memory_resource>
|
||
|
template
<
class
T
>
class polymorphic_allocator ; |
(library fundamentals TS) | |
The class template
std::experimental::pmr::polymorphic_allocator
is an
Allocator
whose allocation behavior depends on the memory resource it is constructed with. Thus, different instances of
polymorphic_allocator
can exhibit entirely different allocation behavior. This runtime polymorphism allows objects using
polymorphic_allocator
to behave as if they used different allocator types at run time despite the identical static allocator type.
Member types
| Member type | definition |
value_type
|
T
|
Member functions
constructs a
polymorphic_allocator
(public member function) |
|
|
(destructor)
(implicitly declared)
|
implicitly declared destructor
(public member function) |
|
copy assignment operator
(public member function) |
|
Public member functions |
|
|
allocate memory
(public member function) |
|
|
deallocate memory
(public member function) |
|
|
constructs an object in allocated storage
(public member function) |
|
|
destroys an object in allocated storage
(public member function) |
|
create a new
polymorphic_allocator
for use by a container's copy constructor
(public member function) |
|
|
returns a pointer to the underlying memory resource
(public member function) |
|
Non-member functions
compare two
polymorphic_allocator
s
(function) |