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

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2015-02-18 at 16:34 +0000, Andrew Cooper wrote:
> This is the same set used by libxc.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Ian Campbell <Ian.Campbell@xxxxxxxxxx>

> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
>  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..a2b6fb7 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);           \
> +            (void) (&_x == &_y);                 \
> +            (_x < _y) ? _x : _y; })
> +#define max(X, Y) ({                             \
> +            const typeof (X) _x = (X);           \
> +            const typeof (Y) _y = (Y);           \
> +            (void) (&_x == &_y);                 \
> +            (_x > _y) ? _x : _y; })
> +
> +#define min_t(type,x,y) \
> +        ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
> +#define max_t(type,x,y) \
> +        ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
> +
>  #define LIBXL__LOGGING_ENABLED
>  
>  #ifdef LIBXL__LOGGING_ENABLED



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