std::uninitialized_construct_using_allocator
| Defined in | memory |
Since C++20
template< class T, class Alloc, class... Args >
constexpr T* uninitialized_construct_using_allocator( T* p, const 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