std::scoped_allocator_adaptor<OuterAlloc,InnerAlloc...>::scoped_allocator_adaptor
From cppreference.com
| Defined in header <scoped_allocator>
|
||
scoped_allocator_adaptor();
|
(1) | (since C++11) |
template< class OuterA2 >
scoped_allocator_adaptor(
OuterA2&& outerAlloc, const InnerAllocs&... innerAllocs
) noexcept;
|
(2) | (since C++11) |
scoped_allocator_adaptor(
const scoped_allocator_adaptor& other
) noexcept;
|
(3) | (since C++11) |
scoped_allocator_adaptor(
scoped_allocator_adaptor&& other
) noexcept;
|
(4) | (since C++11) |
template< class OuterA2 >
scoped_allocator_adaptor(
const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& other
) noexcept;
|
(5) | (since C++11) |
template< class OuterA2 >
scoped_allocator_adaptor(
scoped_allocator_adaptor<OuterA2, InnerAllocs...>&& other
) noexcept;
|
(6) | (since C++11) |
1) Default constructor: value-initializes the
OuterAlloc base class and the inner allocator member object, if used by the implementation.2) Constructs the base class
OuterAlloc from std::forward<OuterA2>(outerAlloc), and the inner allocators with innerAllocs.... This overload participates in overload resolution only if std::is_constructible<OuterAlloc, OuterA2>::value is true.3) Copy-constructor: initializes each allocator from the corresponding allocator of
other.4) Move-constructor: moves each allocator from the corresponding allocator of
other into *this.5) Initializes each allocator from the corresponding allocator of
other. This overload participates in overload resolution only if std::is_constructible<OuterAlloc, const OuterA2&>::value is true.6) Initializes each allocator from the corresponding allocator of
other, using move semantics. This overload participates in overload resolution only if std::is_constructible<OuterAlloc, OuterA2>::value is true.Parameters
| outerAlloc | - | constructor argument for the outer allocator |
| innerAllocs... | - | constructor arguments for the inner allocators |
| other | - | another std::scoped_allocator_adaptor
|
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 2782 | C++11 | constructors taking OuterA2 weren't constrained, interfering with metaprogramming
|
constraint added |
See also
| allocates uninitialized storage using the outer allocator (public member function) | |
| constructs an object in allocated storage, passing the inner allocator to its constructor if appropriate (public member function) |