std::align_val_t
From cppreference.com
| Defined in header <new>
|
||
| enum class align_val_t : std::size_t {}; |
(since C++17) | |
Both new-expression and delete-expression, when used with objects whose alignment requirement is greater than __STDCPP_DEFAULT_NEW_ALIGNMENT__, pass that alignment requirement as an argument of type std::align_val_t to the selected allocation/deallocation function.
Notes
Alignment (as obtained by alignof) has the type std::size_t, but placement forms of allocation and deallocation functions that take std::size_t as an additional parameter are already in use, so this type is used instead.
| Feature-test macro | Value | Std | Feature |
|---|---|---|---|
__cpp_aligned_new |
201606L |
(C++17) | Dynamic memory allocation for over-aligned data |
See also
| allocation functions (function) | |
| deallocation functions (function) |