This function is missing on some platforms:
IRIX 5.3, OSF/1 4.0, Solaris 2.5.1.
@item
-This function does not return a byte count as specified in C99 on some platforms:
+This function does not support format directives that access arguments in an
+arbitrary order, such as @code{"%2$s"}, on some platforms:
+NetBSD 3.0, mingw, BeOS.
+@item
+This function does not return a byte count as specified in C99 on some
+platforms:
HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw.
@item
This function overwrites memory even when a size argument of 1 is passed on some
platforms:
-Linux libc5.
+Linux libc5, BeOS.
@end itemize
Portability problems fixed by Gnulib module @code{snprintf-posix}:
on some platforms:
Solaris 11 2010-11.
@item
-This function does not support format directives that access arguments in an
-arbitrary order, such as @code{"%2$s"}, on some platforms:
-NetBSD 3.0, mingw, BeOS.
-@item
This function doesn't support the @code{'} flag on some platforms:
NetBSD 3.0, Cygwin 1.5.24, mingw.
@item
@item
This function does not support precisions larger than 512 or 1024 in integer,
floating-point and pointer output on some platforms:
-Solaris 10/x86, mingw, BeOS.
+AIX 7.1, Solaris 10/x86, mingw, BeOS.
@item
This function mishandles large floating point precisions
(for example, formatting 1.0 with @samp{"%.511f"})
This function does not fully support the @samp{n} directive on some platforms:
HP-UX 11, mingw.
@item
-This function overwrites memory when a size = 1 argument is passed on some
-platforms:
-BeOS.
-@item
This function overwrites memory even when a zero size argument is passed on some
platforms:
OSF/1 5.1.