[vlc-devel] [PATCH 1/3] vlc_common: add vlc_align helper

[zhilizhao]

> On Feb 12, 2020, at 9:50 PM, Marvin Scholz <epirat07 at gmail.com> wrote:
> 
> ---
> include/vlc_common.h | 11 +++++++++++
> 1 file changed, 11 insertions(+)
> 
> diff --git a/include/vlc_common.h b/include/vlc_common.h
> index e4c5cd85c9..9d9d0375c9 100644
> --- a/include/vlc_common.h
> +++ b/include/vlc_common.h
> @@ -548,6 +548,17 @@ typedef int ( * vlc_list_callback_t ) ( vlc_object_t *,      /* variable's objec
> /* clip v in [min, max] */
> #define VLC_CLIP(v, min, max)    __MIN(__MAX((v), (min)), (max))
> 
> +/**
> + * Make integer v a multiple of align
> + *
> + * \note align must be a power of 2
> + */
> +VLC_USED
> +static inline size_t vlc_align(size_t v, size_t align)
> +{
> +    return ((v) + ((align) - 1)) & ~((align) - 1);
> +}

Why not int or fixed width integer? Is there known usecase for size_t?

> +
> /** Greatest common divisor */
> VLC_USED
> static inline int64_t GCD ( int64_t a, int64_t b )
> -- 
> 2.24.1 (Apple Git-126)
> 
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