| title | aligned_storage Class | Microsoft Docs | ||
|---|---|---|---|
| ms.custom | |||
| ms.date | 11/04/2016 | ||
| ms.reviewer | |||
| ms.suite | |||
| ms.technology |
|
||
| ms.tgt_pltfrm | |||
| ms.topic | reference | ||
| f1_keywords |
|
||
| dev_langs |
|
||
| helpviewer_keywords |
|
||
| ms.assetid | f255e345-1f05-4d07-81e4-017f420839fb | ||
| caps.latest.revision | 23 | ||
| author | corob-msft | ||
| ms.author | corob | ||
| manager | ghogen | ||
| ms.workload |
|
Makes suitably aligned type.
template <std::size_t Len, std::size_t Align>
struct aligned_storage;
template <std::size_t Len, std::size_t Align = alignment_of<max_align_t>::value>
using aligned_storage_t = typename aligned_storage<Len, Align>::type;
Len
The object size.
Align
The object alignment.
The template member typedef type is a synonym for a POD type with alignment Align and size Len. Align must be equal to alignment_of<T>::value for some type T, or to the default alignment.
#include <type_traits>
#include <iostream>
typedef std::aligned_storage<sizeof (int),
std::alignment_of<double>::value>::type New_type;
int main()
{
std::cout << "alignment_of<int> == "
<< std::alignment_of<int>::value << std::endl;
std::cout << "aligned to double == "
<< std::alignment_of<New_type>::value << std::endl;
return (0);
}
alignment_of<int> == 4
aligned to double == 8
Header: <type_traits>
Namespace: std