Re: [PATCH 01/41] core: some helper macros for easier access to box dimensions

Uli Schlachter <[email protected]>
Newsgroups gmane.comp.lib.cairo
Message-ID <[email protected]>
Am 10.12.2015 um 23:16 schrieb Enrico Weigelt, metux IT consult:
> Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>
> ---
>  src/cairo-box-inline.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/src/cairo-box-inline.h b/src/cairo-box-inline.h
> index d6b9941..0bb8df8 100644
> --- a/src/cairo-box-inline.h
> +++ b/src/cairo-box-inline.h
> @@ -118,4 +118,7 @@ _cairo_box_is_pixel_aligned (const cairo_box_t *box)
>  #endif
>  }
>  
> +#define _CAIRO_BOX_WIDTH(box)	(abs(box.p2.x-box.p1.x))
> +#define _CAIRO_BOX_HEIGHT(box)	(abs(box.p2.y-box.p1.y))
> +
>  #endif /* CAIRO_BOX_H */

Hm. I don't really like this for two reasons:

The patch as-is just introduces unused definitions. I'd squash this into the
patch that uses this.

This evaluates the macro argument twice and doesn't even protect the
evaluations. Could you add least replace box with (box)?

Uli
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