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| author | Ulrich Drepper <drepper@redhat.com> | 1999-12-29 17:52:49 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-12-29 17:52:49 +0000 |
| commit | dbbbaf53352501384c57512e2251c9d7169388af (patch) | |
| tree | ee82c0b6703dcaa060e93c02e3bf108c2176e78f /manual/getopt.texi | |
| parent | 15a2315cb457be0599d7a662e64aa54e560f96f0 (diff) | |
| download | glibc-dbbbaf53352501384c57512e2251c9d7169388af.tar.gz glibc-dbbbaf53352501384c57512e2251c9d7169388af.tar.xz glibc-dbbbaf53352501384c57512e2251c9d7169388af.zip | |
Update.
1999-12-29 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/alpha/sys/io.h: Don't include <asm/io.h>; remove K&R compatibility; add missing ints. * sysdeps/unix/sysv/linux/arm/sys/io.h: Remove K&R compatibility, add missing ints. * sysdeps/unix/sysv/linux/sys/io.h: Don't include <asm/io.h>. 1999-12-29 Andreas Jaeger <aj@suse.de> * manual/getopt.texi (Using Getopt): Document ordering of options. 1999-12-29 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/llseek.c: Emit link time warning for llseek. Requested by Michael Deutschmann <michael@talamasca.wkpowerlink.com>. 1999-12-14 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/scsi/scsi.h: Add new defines from Linux 2.3.32. 1999-12-28 Jakub Jelinek <jakub@redhat.com> * elf/sprof.c (load_shobj): Fix error message. (generate_call_graph): Cast %*s length argument to int. * locale/programs/localedef.c (construct_output_path): Likewise. * locale/programs/ld-ctype.c (ctype_finish): Use proper format specifier. (ctype_class_new): Likewise. * locale/programs/ld-time.c (time_finish): Likewise. * sunrpc/svc_simple.c (register_rpc): Likewise. * nscd/connections.c (nscd_run, start_threads): Use long instead of int to avoid cast warnings. * sysdeps/ieee754/ldbl-128/e_atan2l.c (__ieee754_atan2l): Kill warning. * sysdeps/ieee754/ldbl-128/s_roundl.c (__roundl): Remove unused variable se. * time/strftime.c (my_strftime): Provide wide era string when requested. * sysdeps/sparc/fpu/bits/mathinline.h (__signbit, __signbitl): Separate into 32bit and 64bit versions.
Diffstat (limited to 'manual/getopt.texi')
| -rw-r--r-- | manual/getopt.texi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/manual/getopt.texi b/manual/getopt.texi index f3934d0cfe..aefb034566 100644 --- a/manual/getopt.texi +++ b/manual/getopt.texi @@ -71,10 +71,29 @@ string can be followed by a colon (@samp{:}) to indicate that it takes a required argument. If an option character is followed by two colons (@samp{::}), its argument is optional; this is a GNU extension. +@code{getopt} has three ways to deal with options that follow +non-options @var{argv} elements. The special argument @samp{--} forces +in all cases the end of option scanning. + +@itemize @bullet +@item +The default is to permute the contents of @var{argv} while scanning it +so that eventually all the non-options are at the end. This allows +options to be given in any order, even with programs that were not +written to expect this. + +@item If the @var{options} argument string begins with a hyphen (@samp{-}), this is treated specially. It permits arguments that are not options to be returned as if they were associated with option character @samp{\0}. +@item +POSIX demands the following behaviour: The first non-option stops option +processing. This mode is selected by either setting the environment +variable @code{POSIXLY_CORRECT} or beginning the @var{options} argument +string with a plus sign (@samp{+}). +@end itemize + The @code{getopt} function returns the option character for the next command line option. When no more option arguments are available, it returns @code{-1}. There may still be more non-option arguments; you |