NAME

std::uninitialized_construct_using_allocator - std::uninitialized_construct_using_allocator

Synopsis

Defined in header <memory>
template< class T, class Alloc, class... Args >
constexpr T* uninitialized_construct_using_allocator( T* p, const (since C++20)
Alloc& alloc, Args&&... args );

Creates an object of the given type T by means of uses-allocator construction at the
uninitialized memory location indicated by p

Equivalent to

return std::apply([&]<class... Xs>(Xs&&...xs) {
return std::construct_at(p, std::forward<Xs>(xs)...);
}, std::uses_allocator_construction_args<T>(alloc, std::forward<Args>(args)...));

Parameters

p - the memory location where the object will be placed.
alloc - the allocator to use.
args - the arguments to pass to T's constructor

Return value

Pointer to the newly-created object of type T

Exceptions

May throw any exception thrown by the constructor of T, typically including
std::bad_alloc

Example

This section is incomplete
Reason: no example

See also

uses_allocator checks if the specified type supports uses-allocator
(C++11) construction
(class template)
make_obj_using_allocator creates an object of the given type by means of
(C++20) uses-allocator construction
(function template)