[C posix programming] nil instead of null ?

English Programming/Scripting
1

Greetings !!

I tried this little code to demonstrate the internationalization needs to my students, a program that I used since 2011.


#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <locale.h>

int main(int argc,char *argv])
{
  setlocale(LC_ALL,"fr_BE.UTF-8");

  wprintf(L"Vérif locale... %p
",argv[1]);

  exit(0);
}

I was surprized that the results obtained wasn’t (null) as expected but either (nil) :{

I can say last year the result during the same lecture was “(null)” ^^
Does the things have changed with the locale or glibc representing a null pointed string ?

My workstation has those locales:

rasalgethi:/librairies/cssm_wide/tests/getnchar # locale
LANG=POSIX
LC_CTYPE=en_US.UTF-8
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

…I observed this behaviour on all my Linux systems, at home as at school. Last year we moved to 15.1 and I remember we got “(null)” in september/october 2019 ^^
Do I change my notes and screen shots or there is something I’m wrong with ?

2

my bad… my very bad :{

I looked at the backups of the sessions made last year… I used %s instead of %p.