std::experimental::pmr::polymorphic_allocator<T>:: polymorphic_allocator
From cppreference.com
<
cpp
|
experimental
|
polymorphic allocator
|
polymorphic_allocator
(
)
noexcept
;
|
(1) | |
|
polymorphic_allocator
(
const
polymorphic_allocator
&
other
)
noexcept
=
default
;
|
(2) | |
|
template
<
class
U
>
polymorphic_allocator ( const polymorphic_allocator < U > & other ) noexcept ; |
(3) | |
|
polymorphic_allocator
(
memory_resource
*
r
)
;
|
(4) | |
Constructs a new
polymorphic_allocator
.
1)
Constructs a
polymorphic_allocator
using the return value of
std::
experimental
::
pmr
::
get_default_resource
(
)
as the underlying memory resource.
2,3)
Constructs a
polymorphic_allocator
using
other.
resource
(
)
as the underlying memory resource.
4)
Constructs a
polymorphic_allocator
using
r
as the underlying memory resource. This constructor provides an implicit conversion from
memory_resource*
.
Parameters
| other | - |
another
polymorphic_allocator
to copy from
|
| r | - | pointer to the memory resource to use. May not be null |
Exceptions
4)
Throws nothing.