Specifies that an instance of the type can be copy-constructed in-place by a given allocator.
The type T
is CopyInsertable into the container X
whose value_type
is identical to T
if T
is MoveInsertable into X
, and, given.
A | an allocator type |
m | an lvalue of type A |
p | the pointer of type T* prepared by the container |
v | expression of type (possibly const ) T |
where X::allocator_type
is identical to std::allocator_traits<A>::rebind_alloc<T>
,
the following expression is well-formed:
std::allocator_traits<A>::construct(m, p, v);
And after evaluation, the value of *p
is equivalent to the value of v
. The value of v
is unchanged.
If X
is not allocator-aware, the term is defined as if A
were std::allocator<T>
, except that no allocator object needs to be created, and user-defined specializations of std::allocator
are not instantiated.
If A
is std::allocator<T>
, then this will call placement-new, as by ::new((void*)p) T(v)
.
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