@node posix_fadvise @section @code{posix_fadvise} @findex posix_fadvise POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_fadvise.html} Gnulib module: --- Portability problems fixed by Gnulib: @itemize @item On platforms where @code{off_t} is a 32-bit type, this function may not work correctly across the entire data range of files 2 GiB and larger. @xref{Large File Support}. @end itemize Portability problems not fixed by Gnulib: @itemize @item This function is missing on some platforms: macOS 11.1, FreeBSD 6.0, NetBSD 3.0, OpenBSD 6.7, Minix 3.1.8, AIX 5.1, HP-UX 11.23, IRIX 6.5, Solaris 10, Cygwin 1.5.x, mingw, MSVC 14, Android 4.4. @end itemize