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SubjectRe: [PATCH] size_t now supported in printk
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>>>>> Sean Hunter writes:

Sean> By popular demand, this patch allows the use of the "%Z" qualifier to
Sean> denote a size_t argument to vsprintf (and thus printk). A number of
Sean> people have told me that this would be useful to reduce the need for
Sean> casts on non-intel architectures. I have seen this need myself in
Sean> trying to remove compile warnings on Alpha.

Sean> The patch is agains 2.2.10, but I don't think anything has touched
Sean> this file for quite some time, so it'll probably go cleanly
Sean> everywhere. Please feel free to apply, test, flame etc. If feedback
Sean> is positive I'll send it to Alan and Linus with a suitably grovelling
Sean> request for inclusion.

Sean> Sean

Sean> --- linux.vanilla/lib/vsprintf.c Wed Jul 21 12:05:34 1999
Sean> +++ linux/lib/vsprintf.c Fri Jul 23 17:25:48 1999
Sean> @@ -156,7 +156,9 @@
Sean> int precision; /* min. # of digits for integers; max
Sean> number of chars for from string */
Sean> int qualifier; /* 'h', 'l', or 'L' for integer fields */
Sean> + /* 'Z' support added 23/7/1999 S.H. */

Please use 'z' - and then send it to Linus.

The latest ISO C9x draft (from January 99) specifies:

z Specifies that a following d, i, o, u, x, or X
conversion specifier applies to a size_t or the
corresponding signed integer type argument; or
that a following n conversion specifier applies
to a pointer to a signed integer type
corresponding to size_t argument.

The glibc 2.1 manual has:
`z'
`Z'
Specifies that the argument is a `size_t'.

`z' was introduced in ISO C 9x. `Z' is a GNU extension predating
this addition and should not be used anymore in new code.

Andreas
--
Andreas Jaeger aj@arthur.rhein-neckar.de jaeger@informatik.uni-kl.de
for pgp-key finger ajaeger@aixd1.rhrk.uni-kl.de

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