Re: [Xen-devel] [PATCH v2 1/6] tools/libxl: Introduce min and max macros

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Fri, 2015-03-06 at 19:05 +0000, Andrew Cooper wrote:
> This is the same set used by libxc.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> 
> ---
> v2: Don't use reserved identifiers in min_t/max_t
> ---
>  tools/libxl/libxl_internal.h |   16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
> index 934465a..fcbec7f 100644
> --- a/tools/libxl/libxl_internal.h
> +++ b/tools/libxl/libxl_internal.h
> @@ -108,6 +108,22 @@
>  
>  #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
>  
> +#define min(X, Y) ({                             \
> +            const typeof (X) _x = (X);           \
> +            const typeof (Y) _y = (Y);           \

You've avoided the reserved-by-C names here, but IIRC a single
underscore is reserved by POSIX.

However since you've just copied from libxc, I think we can live with
this until someone find the energy to fix them all:
        Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Ian.


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