Change %Z to %z in printf

Change %Z to %z in printf

[Jan Engelhardt]

Hi,


I found out that %Z is actually a deprecated libc5-ism as printf(3) of 
man-pages 3.17 dated 2008-12-19 tells me.

In ${kernel}/lib/vsprintf.c, I find the following note and wondered
if there might be any objections to going back to 'z'.

        int qualifier;          /* 'h', 'l', or 'L' for integer fields */ 
                                /* 'z' support added 23/7/1999 S.H.    */ 
                                /* 'z' changed to 'Z' --davidm 1/25/99 */ 
                                /* 't' added for ptrdiff_t */ 


Jan

Re: Change %Z to %z in printf

[David Miller]

From: Jan Engelhardt <jengelh@medozas.de>
Date: Sat, 7 Mar 2009 19:54:45 +0100 (CET)

> I found out that %Z is actually a deprecated libc5-ism as printf(3) of 
> man-pages 3.17 dated 2008-12-19 tells me.
> 
> In ${kernel}/lib/vsprintf.c, I find the following note and wondered
> if there might be any objections to going back to 'z'.

GCC's printf formatting checks only started recognizing %z a few
releases ago.  We kept the %Z in there so that with all gcc versions
we won't get warnings.

We've recently increased the minimal GCC version, so going to %z might
be OK now.