@itemize
@item
This function is missing on some platforms:
-MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, HP-UX 11,
-IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.5.x, mingw, Interix 3.5.
+Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11,
+IRIX 6.5, OSF/1 5.1, Solaris 11 2011-11, Cygwin 1.5.x, mingw, MSVC 9, Interix 3.5.
@end itemize
Portability problems fixed by Gnulib module @code{vdprintf-posix}:
printf of @samp{long double} numbers is unsupported on some platforms:
BeOS.
@item
+printf of @samp{long double} numbers outside the IEEE 754 range produces
+no meaningful results on some platforms:
+glibc and others, on x86, x86_64, IA-64 CPUs.
+@item
This function does not support the @samp{a} and @samp{A} directives on some
platforms:
glibc-2.3.6, BeOS.
@item
This function does not support precisions larger than 512 or 1024 in integer,
floating-point and pointer output on some platforms:
-BeOS.
+AIX 7.1, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
+@item
+When formatting an integer with grouping flag, this function inserts thousands
+separators even in the "C" locale on some platforms:
+NetBSD 5.1.
+@item
+On some platforms, this function does not set @code{errno} or the
+stream error indicator on attempts to write to a read-only stream:
+Cygwin 1.7.9.
@end itemize