2 @section @file{stddef.h}
4 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/stddef.h.html}
8 Portability problems fixed by Gnulib:
11 Some platforms fail to provide @code{max_align_t}, which was added in C11:
12 Solaris 11.0 and others.
15 @code{max_align_t} does not have the expected alignment on some platforms:
19 Some old platforms fail to provide @code{wchar_t}.
22 Some platforms provide a @code{NULL} macro that cannot be used in arbitrary
27 Portability problems not fixed by Gnulib:
30 Some platforms provide an @code{offsetof} macro that cannot be used in
31 arbitrary expressions:
33 This problem can be worked around by parenthesizing the
34 @code{offsetof} expression in the unlikely case you use it with
35 @code{sizeof} or @samp{[]}.