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std::max_align_t

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Defined in header <cstddef>
typedef /*implementation-defined*/ max_align_t;
(depuis C++11)
std::max_align_t est un type POD dont l'alignement exigence est au moins aussi strictes (plus grande) que celle de chaque type scalaire .
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std::max_align_t is a POD type whose alignment requirement is at least as strict (as large) as that of every scalar type.
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[modifier] Notes

Pointeurs retournés par les fonctions de répartition tels que std::malloc sont correctement alignée pour n'importe quel objet, ce qui signifie qu'ils sont alignés au moins aussi strictes que std::max_align_t .
Original:
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.
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std::max_align_t est habituellement synonyme de plus grand type scalaire, qui est long double sur la plupart des plates-formes, et son exigence d'alignement est soit 8 ou 16 .
Original:
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.
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[modifier] Exemple

#include <iostream>
#include <cstddef>
int main()
{
    std::cout << alignof(std::max_align_t) << '\n';
}

Résultat :

16

[modifier] Voir aussi

alignof operator queries alignment requirements of a type (depuis C++11) [edit]
obtient exigences d'alignement du type
Original:
obtains the type's alignment requirements
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(classe générique) [edit]
(C++11)
vérifie si un type est de type scalaire
Original:
checks if a type is scalar type
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(classe générique) [edit]