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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/C++2LaTeX-1_1pl1/getopt.h
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+/* declarations for getopt
+ Copyright (C) 1989 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 1, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns EOF, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+ for unrecognized options. */
+
+extern int opterr;
+
+/* Describe the long-named options requested by the application.
+ _GETOPT_LONG_OPTIONS is a vector of `struct option' terminated by an
+ element containing a name which is zero.
+ The field `has_arg' is:
+ 0 if the option does not take an argument,
+ 1 if the option requires an argument,
+ 2 if the option takes an optional argument.
+ If the field `flag' is nonzero, it points to a variable that is set to
+ the value given in the field `val' when the option is found, but
+ left unchanged if the option is not found. */
+
+struct option
+{
+ char *name;
+ int has_arg;
+ int *flag;
+ int val;
+};
+
+extern struct option *_getopt_long_options;
+
+/* If nonzero, tell getopt that '-' means a long option.
+ Set by getopt_long_only. */
+extern int _getopt_long_only;
+
+#if 0
+/* Name of long-named option actually found.
+ Only changed when a long-named option is found.
+ Set to zero when returning a non-option arg in `optarg'. */
+
+extern char *_getopt_option_name;
+#endif
+
+/* The index in GETOPT_LONG_OPTIONS of the long-named option found.
+ Only valid when a long-named option has been found by the most
+ recent call to `getopt'. */
+
+extern int option_index;
+
+#ifdef __STDC__
+int getopt (int, char **, char *);
+int getopt_long (int, char **, char *, struct option *, int *);
+int getopt_long_only (int, char **, char *, struct option *, int *);
+#else
+int getopt ();
+int getopt_long ();
+int getopt_long_only ();
+#endif