-HP-UX 11.00, IRIX 6.5, Solaris 2.6, mingw, Interix 3.5.
+Minix 3.1.8, HP-UX 11.00, IRIX 6.5, Solaris 2.6, mingw, Interix 3.5.
+@item
+This function returns 0 when the first argument is NULL in some locales on some platforms:
+AIX 4.3, OSF/1 5.1, Solaris 11 2011-11.