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1998-09-11 Ulrich Drepper <drepper@cygnus.com> * resolv/res_init.c (res_init): Handle resolv.conf file with only one nameserver correctly. Patch by HJ Lu. * iconvdata/Makefile (modules): Add IEC_P27-1, BALTIC, ASMO_449, and ANSI_X3.110. Define *-routines variables for new modules. (distribute): Add .c files for new modules. (awk-generated-headers): Add iec_p27-1.h, baltic.h, and asmo_449.h. Add rules for hedaer generation. * iconvdata/gconv-modules: Add entries for new modules. Pretty print. * iconvdata/ansi_x3.110.c: New file. * iconvdata/asmo_449.c: New file. * iconvdata/baltic.c: New file. * iconvdata/iec_p27-1.c: New file. * iconvdata/t61.c (from_ucs4): Correct 0x23, 0x24, 0x80, and 0x81 entries. Convert U02dc correctly. * math/atest-exp.c: Add parentheses to avoid gcc warnings. * math/atest-exp2.c: Likewise. * math/atest-sincos.c: Likewise. * posix/getopt.h: Don't define non-POSIX stuff unless _GNU_SOURCE is defined. 1998-09-11 10:51 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * string/strcoll.c: Optimize a few expressions. * string/strxfrm.c: Likewise.
140 lines
4.6 KiB
C
140 lines
4.6 KiB
C
/* Declarations for getopt.
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Copyright (C) 1989,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _GETOPT_H
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#define _GETOPT_H 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* For communication from `getopt' to the caller.
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When `getopt' finds an option that takes an argument,
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the argument value is returned here.
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Also, when `ordering' is RETURN_IN_ORDER,
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each non-option ARGV-element is returned here. */
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extern char *optarg;
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/* Index in ARGV of the next element to be scanned.
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This is used for communication to and from the caller
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and for communication between successive calls to `getopt'.
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On entry to `getopt', zero means this is the first call; initialize.
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When `getopt' returns -1, this is the index of the first of the
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non-option elements that the caller should itself scan.
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Otherwise, `optind' communicates from one call to the next
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how much of ARGV has been scanned so far. */
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extern int optind;
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/* Callers store zero here to inhibit the error message `getopt' prints
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for unrecognized options. */
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extern int opterr;
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/* Set to an option character which was unrecognized. */
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extern int optopt;
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#ifdef _GNU_SOURCE
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/* Describe the long-named options requested by the application.
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The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
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of `struct option' terminated by an element containing a name which is
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zero.
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The field `has_arg' is:
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no_argument (or 0) if the option does not take an argument,
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required_argument (or 1) if the option requires an argument,
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optional_argument (or 2) if the option takes an optional argument.
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If the field `flag' is not NULL, it points to a variable that is set
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to the value given in the field `val' when the option is found, but
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left unchanged if the option is not found.
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To have a long-named option do something other than set an `int' to
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a compiled-in constant, such as set a value from `optarg', set the
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option's `flag' field to zero and its `val' field to a nonzero
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value (the equivalent single-letter option character, if there is
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one). For long options that have a zero `flag' field, `getopt'
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returns the contents of the `val' field. */
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struct option
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{
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# if defined __STDC__ && __STDC__
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const char *name;
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# else
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char *name;
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# endif
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/* has_arg can't be an enum because some compilers complain about
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type mismatches in all the code that assumes it is an int. */
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int has_arg;
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int *flag;
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int val;
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};
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/* Names for the values of the `has_arg' field of `struct option'. */
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# define no_argument 0
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# define required_argument 1
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# define optional_argument 2
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#endif /* GNU source */
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#if defined __STDC__ && __STDC__
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# ifdef __GNU_LIBRARY__
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/* Many other libraries have conflicting prototypes for getopt, with
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differences in the consts, in stdlib.h. To avoid compilation
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errors, only prototype getopt for the GNU C library. */
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extern int getopt (int argc, char *const *argv, const char *shortopts);
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# else /* not __GNU_LIBRARY__ */
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extern int getopt ();
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# endif /* __GNU_LIBRARY__ */
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# ifdef _GNU_SOURCE
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extern int getopt_long (int argc, char *const *argv, const char *shortopts,
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const struct option *longopts, int *longind);
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extern int getopt_long_only (int argc, char *const *argv,
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const char *shortopts,
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const struct option *longopts, int *longind);
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/* Internal only. Users should not call this directly. */
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extern int _getopt_internal (int argc, char *const *argv,
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const char *shortopts,
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const struct option *longopts, int *longind,
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int long_only);
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# endif
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#else /* not __STDC__ */
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extern int getopt ();
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# ifdef _GNU_SOURCE
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extern int getopt_long ();
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extern int getopt_long_only ();
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extern int _getopt_internal ();
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# endif
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#endif /* __STDC__ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* getopt.h */
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