[FFmpeg-devel] [PATCH] avutil/mem_internal: Don't use alignas for MSVC

[James Almer]

On 11/30/2024 6:13 AM, Zhao Zhili wrote:
> From: Zhao Zhili <zhilizhao at tencent.com>
> 
> MSVC messed up standard C features, again.
> ---
>   libavutil/mem_internal.h | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/libavutil/mem_internal.h b/libavutil/mem_internal.h
> index 249ec3a642..2eb4aef5b0 100644
> --- a/libavutil/mem_internal.h
> +++ b/libavutil/mem_internal.h
> @@ -78,6 +78,10 @@
>       #define DECLARE_ALIGNED_T(n,t,v)    alignas(FFMIN(n, 16)) t v
>       #define DECLARE_ASM_ALIGNED(n,t,v)  alignas(FFMIN(n, 16)) t av_used v
>       #define DECLARE_ASM_CONST(n,t,v)    alignas(FFMIN(n, 16)) static const t av_used v
> +#elif defined(_MSC_VER)
> +    #define DECLARE_ALIGNED_T(n,t,v)    __declspec(align(n)) t v
> +    #define DECLARE_ASM_ALIGNED(n,t,v)  __declspec(align(n)) t v
> +    #define DECLARE_ASM_CONST(n,t,v)    __declspec(align(n)) static const t v
>   #else
>       #define DECLARE_ALIGNED_T(n,t,v)    alignas(n) t v
>       #define DECLARE_ASM_ALIGNED(n,t,v)  alignas(n) t av_used v

Ok.

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