diff options
Diffstat (limited to 'manual/getopt.texi')
-rw-r--r-- | manual/getopt.texi | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/manual/getopt.texi b/manual/getopt.texi index a71c373..5485fc4 100644 --- a/manual/getopt.texi +++ b/manual/getopt.texi @@ -20,9 +20,8 @@ use this facility, your program must include the header file @file{unistd.h}. @pindex unistd.h -@comment unistd.h -@comment POSIX.2 @deftypevar int opterr +@standards{POSIX.2, unistd.h} If the value of this variable is nonzero, then @code{getopt} prints an error message to the standard error stream if it encounters an unknown option character or an option with a missing required argument. This is @@ -31,18 +30,16 @@ does not print any messages, but it still returns the character @code{?} to indicate an error. @end deftypevar -@comment unistd.h -@comment POSIX.2 @deftypevar int optopt +@standards{POSIX.2, unistd.h} When @code{getopt} encounters an unknown option character or an option with a missing required argument, it stores that option character in this variable. You can use this for providing your own diagnostic messages. @end deftypevar -@comment unistd.h -@comment POSIX.2 @deftypevar int optind +@standards{POSIX.2, unistd.h} This variable is set by @code{getopt} to the index of the next element of the @var{argv} array to be processed. Once @code{getopt} has found all of the option arguments, you can use this variable to determine @@ -50,16 +47,14 @@ where the remaining non-option arguments begin. The initial value of this variable is @code{1}. @end deftypevar -@comment unistd.h -@comment POSIX.2 @deftypevar {char *} optarg +@standards{POSIX.2, unistd.h} This variable is set by @code{getopt} to point at the value of the option argument, for those options that accept arguments. @end deftypevar -@comment unistd.h -@comment POSIX.2 @deftypefun int getopt (int @var{argc}, char *const *@var{argv}, const char *@var{options}) +@standards{POSIX.2, unistd.h} @safety{@prelim{}@mtunsafe{@mtasurace{:getopt} @mtsenv{}}@asunsafe{@ascuheap{} @ascuintl{} @asulock{} @asucorrupt{}}@acunsafe{@acsmem{} @aculock{} @acucorrupt{}}} @c Swapping elements of passed-in argv may be partial in case of @c cancellation. Gettext brings about a whole lot of AS and AC safety @@ -207,9 +202,8 @@ declared in @file{getopt.h}, not @file{unistd.h}. You should make every program accept long options if it uses any options, for this takes little extra work and helps beginners remember how to use the program. -@comment getopt.h -@comment GNU @deftp {Data Type} {struct option} +@standards{GNU, getopt.h} This structure describes a single long option name for the sake of @code{getopt_long}. The argument @var{longopts} must be an array of these structures, one for each long option. Terminate the array with an @@ -241,9 +235,8 @@ was seen. @end table @end deftp -@comment getopt.h -@comment GNU @deftypefun int getopt_long (int @var{argc}, char *const *@var{argv}, const char *@var{shortopts}, const struct option *@var{longopts}, int *@var{indexptr}) +@standards{GNU, getopt.h} @safety{@prelim{}@mtunsafe{@mtasurace{:getopt} @mtsenv{}}@asunsafe{@ascuheap{} @ascuintl{} @asulock{} @asucorrupt{}}@acunsafe{@acsmem{} @aculock{} @acucorrupt{}}} @c Same issues as getopt. Decode options from the vector @var{argv} (whose length is @var{argc}). @@ -296,9 +289,8 @@ to recognize options like @w{@samp{-option value}} instead of @w{@samp{--option value}}. To enable these programs to use the GNU getopt functionality there is one more function available. -@comment getopt.h -@comment GNU @deftypefun int getopt_long_only (int @var{argc}, char *const *@var{argv}, const char *@var{shortopts}, const struct option *@var{longopts}, int *@var{indexptr}) +@standards{GNU, getopt.h} @safety{@prelim{}@mtunsafe{@mtasurace{:getopt} @mtsenv{}}@asunsafe{@ascuheap{} @ascuintl{} @asulock{} @asucorrupt{}}@acunsafe{@acsmem{} @aculock{} @acucorrupt{}}} @c Same issues as getopt. |