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std::align_val_t

STD：：调校[医]瓦尔[医]T型

Defined in header ​​
enum class align_val_t : std::size_t {};​(since C++17)

双双新表达式和删除-表达式，当用于对象时，其对齐要求大于__STDCPP_DEFAULT_NEW_ALIGNMENT__，将对齐要求作为类型的参数传递。std::align_val_t到所选的分配/取消分配函数。

注记

对齐率为28%alignof%29有std::size_t，但是分配和取消分配函数的布局形式std::size_t由于已经使用了额外的参数，因此将使用此类型。

另见

operator newoperator new[]allocation functions (function)
operator deleteoperator delete[]deallocation functions (function)

 © cppreference.com

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http：//en.cppreference.com/w/cpp/Memory/New/Alignation[医]瓦尔[医]T型

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