2 @subsection @code{preadv}
9 @ref{Scatter-Gather,,Fast Scatter-Gather I/O,libc},
12 @url{https://www.gnu.org/software/libc/manual/html_node/Scatter_002dGather.html},
15 @uref{https://www.kernel.org/doc/man-pages/online/pages/man2/preadv.2.html,,man preadv}.
20 Portability problems fixed by Gnulib:
24 Portability problems not fixed by Gnulib:
27 This function is missing on some platforms:
28 glibc 2.9, Mac OS X 10.13, FreeBSD 5.2.1, Minix 3.1.8, AIX 5.2, HP-UX 11.31, IRIX 6.5, Solaris 11.4, Cygwin 2.9, mingw, MSVC 14, Android 6.0.
30 On platforms where @code{off_t} is a 32-bit type, this function may not
31 work correctly on files larger than 2 GB@. The fix is to use the
32 @code{AC_SYS_LARGEFILE} macro.