diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | doc/posix-headers/fcntl.texi | 9 |
2 files changed, 13 insertions, 2 deletions
@@ -1,3 +1,9 @@ +2023-04-18 Paul Eggert <eggert@cs.ucla.edu> + + doc: mention when O_* defaults to 0 + * doc/posix-headers/fcntl.texi: Document in more detail which O_* + macros default to 0 in Gnulib. + 2023-04-18 Bruno Haible <bruno@clisp.org> doc: Mention a Cygwin 3.4.6 bug. diff --git a/doc/posix-headers/fcntl.texi b/doc/posix-headers/fcntl.texi index dcaba575bb..4fce47fa12 100644 --- a/doc/posix-headers/fcntl.texi +++ b/doc/posix-headers/fcntl.texi @@ -22,8 +22,9 @@ Mac OS X 10.6, FreeBSD 8.4, NetBSD 5.1, OpenBSD 4.9, Minix 3.1.8, AIX 7.1, HP-UX @item @samp{O_DIRECTORY}, @samp{O_DSYNC}, @samp{O_NOCTTY}, @samp{O_NOFOLLOW}, @samp{O_RSYNC}, @samp{O_SYNC}, -and @samp{O_TTY_INIT} are not defined on some platforms. Gnulib defines -these macros to 0, which is generally safe. +and @samp{O_TTY_INIT} are not defined on some platforms. +When not otherwise defined, Gnulib defines these macros to 0, +which is generally safe. @item @samp{O_NONBLOCK} is not defined on some platforms. If the @@ -50,6 +51,8 @@ Cygwin. @samp{O_BINARY}, @samp{O_TEXT} (not specified by POSIX, but essential for portability to native Windows platforms) are defined on some platforms but not on others. +Gnulib defines these macros to 0 on GNU and other platforms that do not +distinguish between text and binary I/O@. @item @samp{O_CLOEXEC}, @samp{O_NOFOLLOW}, and @samp{O_TTY_INIT} @@ -61,6 +64,8 @@ AIX 7.1 with XL C 12.1. @samp{O_NOATIME}, @samp{O_NOLINK}, @samp{O_NOLINKS}, and @samp{O_NOTRANS} (not specified by POSIX) are defined on some platforms but not on others. +When not otherwise defined, Gnulib defines these macros to 0, +which is generally safe. @item @samp{FD_CLOEXEC}, @samp{F_DUPFD}, and @samp{F_GETFD} are not defined |