<cstdalign>
In some C++ standard library implementations, this header includes the C standard library header <stdalign.h>
, and adds the associated names to the std
namespace. Because that header isn't implemented in MSVC, the <cstdalign>
header defines compatibility macros __alignas_is_defined
and __alignof_is_defined
.
Note
Because the <stdalign.h>
header defines macros that are keywords in C++, including it has no effect. The <stdalign.h>
header is deprecated in C++. The <cstdalign>
header is deprecated in C++17 and removed in the draft C++20 standard.
Requirements
Header: <cstdalign>
Namespace: std
Macros
Macro | Description |
---|---|
__alignas_is_defined |
A C compatibility macro that expands to the integer constant 1. |
__alignof_is_defined |
A C compatibility macro that expands to the integer constant 1. |
See also
Header files reference
C++ standard library overview
Thread safety in the C++ standard library
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