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Bruno Haible
8fb59b8fac
* doc/posix-headers/*.texi: Add info about MSVC 14. * doc/posix-functions/*.texi: Likewise. * doc/pastposix-functions/*.texi: Likewise. * doc/glibc-headers/*.texi: Likewise. * doc/glibc-functions/*.texi: Likewise.
48 lines
1.6 KiB
Plaintext
48 lines
1.6 KiB
Plaintext
@node stat
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@section @code{stat}
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@findex stat
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/stat.html}
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Gnulib module: stat
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Portability problems fixed by Gnulib:
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@itemize
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@item
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On platforms where @code{off_t} is a 32-bit type, @code{stat} may not correctly
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report the size of files or block devices larger than 2 GB.
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(Cf. @code{AC_SYS_LARGEFILE}.)
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@item
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The @code{st_atime}, @code{st_ctime}, @code{st_mtime} fields are affected by
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the current time zone and by the DST flag of the current time zone on some
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platforms:
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mingw, MSVC 14 (when the environment variable @code{TZ} is set).
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@item
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On MSVC 14, this function fails with error @code{ENOENT}
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on files such as @samp{C:\pagefile.sys} and
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on directories such as @samp{C:\System Volume Information}.
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@item
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On some platforms, @code{stat("link-to-file/",buf)} succeeds instead
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of failing with @code{ENOTDIR}.
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FreeBSD 7.2, AIX 7.1, Solaris 9, mingw64.
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@item
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On some platforms, @code{stat(".",buf)} and @code{stat("./",buf)} give
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different results:
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mingw, MSVC 14.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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@xref{sys/stat.h}, for general portability problems with @code{struct stat}.
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@item
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Cygwin's @code{stat} function sometimes sets @code{errno} to @code{EACCES} when
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@code{ENOENT} would be more appropriate.
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@item
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Because of the definition of @code{struct stat}, it is not possible to
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portably replace @code{stat} via an object-like macro. Therefore,
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expressions such as @code{(islnk ? lstat : stat) (name, buf)} are not
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portable, and should instead be written @code{islnk ? lstat (name,
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buf) : stat (name, buf)}.
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@end itemize
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