[edk2-devel] [PATCH v2 1/1] MdePkg: Add STATIC_ASSERT macro

[Liming Gao]

Can you add the sample usage of new macro STATIC_ASSERT?

Or, give the link of static_assert or _Static_assert. 

If so, the developer knows how to use them in source code. 

Thanks
Liming
> -----Original Message-----
> From: devel at edk2.groups.io [mailto:devel at edk2.groups.io] On Behalf Of vit9696 via Groups.Io
> Sent: Tuesday, August 13, 2019 4:17 PM
> To: devel at edk2.groups.io
> Subject: [edk2-devel] [PATCH v2 1/1] MdePkg: Add STATIC_ASSERT macro
> 
> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2048
> 
> Provide a macro for compile time assertions.
> Equivalent to C11 static_assert macro from assert.h.
> 
> Signed-off-by: Vitaly Cheptsov <vit9696 at protonmail.com>
> ---
>  MdePkg/Include/Base.h | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
> index ce20b5f01dce..f85f7028a262 100644
> --- a/MdePkg/Include/Base.h
> +++ b/MdePkg/Include/Base.h
> @@ -843,6 +843,17 @@ typedef UINTN  *BASE_LIST;
>  #define OFFSET_OF(TYPE, Field) ((UINTN) &(((TYPE *)0)->Field))
>  #endif
> 
> +///
> +/// Portable definition for compile time assertions.
> +/// Equivalent to C11 static_assert macro from assert.h.
> +/// Takes condtion and error message as its arguments.
> +///
> +#ifdef _MSC_EXTENSIONS
> +  #define STATIC_ASSERT static_assert
> +#else
> +  #define STATIC_ASSERT _Static_assert
> +#endif
> +
>  /**
>    Macro that returns a pointer to the data structure that contains a specified field of
>    that data structure.  This is a lightweight method to hide information by placing a
> --
> 2.20.1 (Apple Git-117)
> 
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