Re: [PATCH] use %p for pointers

From: Jan Engelhardt
Date: Thu Oct 12 2006 - 08:38:45 EST


> > > man 3 printf:
> > >
> > > p The void * pointer argument is printed in hexadeci-
> > > mal (as if by %#x or %#lx).
> > >
> > > so %p already has to output '0x',
> >
> > That is an detail of this particular implementation.
> >
> > > it's lib/vsprintf.c to blame for non-conforming behavior.
> >
> > The standard makes it completely implementation defined.
>
>Yes, but POSIX/SUS aside, at least we might make kernel version closer
>to Linux user-level.

I do agree.

#include <stdio.h>
int main(void) {
return printf("%p %p\n", main, NULL);
}

In glibc will print "0x7555562c (nil)" which seems ok enough.


-`J'
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