std::max_align_t
From cppreference.com
| Defined in header
<cstddef>
|
||
| typedef /*implementation-defined*/ max_align_t;
|
(since C++11) | |
std::max_align_t is a POD type whose alignment requirement is at least as strict (as large) as that of every scalar type.
[edit] Notes
Pointers returned by allocation functions such as std::malloc are suitably aligned for any object, which means they are aligned at least as strict as std::max_align_t.
std::max_align_t is usually synonymous with the largest scalar type, which is long double on most platforms, and its alignment requirement is either 8 or 16.
[edit] Example
Run this code
#include <iostream> #include <cstddef> int main() { std::cout << alignof(std::max_align_t) << '\n'; }
Possible output:
16
[edit] See also
| alignof operator | queries alignment requirements of a type (since C++11) |
| (C++11)
|
obtains the type's alignment requirements (class template) |
| (C++11)
|
checks if a type is scalar type (class template) |