std::pmr::polymorphic_allocator<T>::allocate
T* allocate( std::size_t n ); | (since C++17) (until C++20) | |
[[nodiscard]] T* allocate( std::size_t n ); | (since C++20) |
Allocates storage for n objects of type T using the underlying memory resource. Equivalent to return static_cast<T*>(resource()->allocate(n * sizeof(T), alignof(T)));.
Parameters
| n | - | the number of objects to allocate storage for |
Return value
A pointer to the allocated storage.
Exceptions
Throws std::length_error if n > SIZE_MAX / sizeof(T); may also any exceptions thrown by the call to resource()->allocate.
See also
|
(C++20) | Allocate raw aligned memory from the underlying resource (public member function) |
|
(C++20) | Allocates raw memory suitable for an object or an array (public member function) |
|
(C++20) | Allocates and constructs an object (public member function) |
|
[static] | allocates uninitialized storage using the allocator (public static member function of std::allocator_traits<Alloc>) |
| allocates memory (public member function of std::pmr::memory_resource) |
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