Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1281346 > unrolled thread

Re: [PATCH 04/13] lib/vsprintf.c: expand field_width to 24 bits

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [PATCH 04/13] lib/vsprintf.c: expand field_width to 24 bits Andrew Morton <akpm@linux-foundation.org> - 2015-12-02 00:40 +0100

#1281346 — Re: [PATCH 04/13] lib/vsprintf.c: expand field_width to 24 bits

On Tue, 20 Oct 2015 22:30:04 +0200 Rasmus Villemoes <linux@rasmusvillemoes.dk> wrote:

> I didn't find a BUILD_BUG/compiletime_assertion/... which would work
> outside function context, so for now I just open-coded it.
> 

It comes up occasionally.  It would be better to create one.

> +extern char __check_printf_spec[1-2*(sizeof(struct printf_spec) != 8)];

Maybe something like

/*
 * Description goes here
 */
#define BUILD_BUG_ON_STATIC(unique_id, expr)		\
	typedef char unique_id[1-2*(expr)];

BUILD_BUG_ON_STATIC(__check_printf_spec, sizeof(struct printf_spec) != 8);

("static" seems the wrong term, but what is the correct term for
"outside of functions"?)

(I hope this patchset is still up-to-date)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web