diff options
Diffstat (limited to 'gnu/usr.bin/cvs/lib/getopt.h')
| -rw-r--r-- | gnu/usr.bin/cvs/lib/getopt.h | 105 |
1 files changed, 67 insertions, 38 deletions
diff --git a/gnu/usr.bin/cvs/lib/getopt.h b/gnu/usr.bin/cvs/lib/getopt.h index 5f902de..f644aa1 100644 --- a/gnu/usr.bin/cvs/lib/getopt.h +++ b/gnu/usr.bin/cvs/lib/getopt.h @@ -1,10 +1,10 @@ -/* declarations for getopt - Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. +/* Declarations for getopt. + Copyright (C) 1989, 1990, 1991, 1992, 1993 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 2, or (at your option) - any later version. + 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 2, 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 @@ -13,9 +13,16 @@ 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. */ + Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* @(#)getopt.h 1.6 92/03/31 */ +/* $CVSid: @(#)getopt.h 1.7 94/09/21 $ */ + +#ifndef _GETOPT_H +#define _GETOPT_H 1 + +#ifdef __cplusplus +extern "C" { +#endif /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, @@ -44,16 +51,21 @@ extern int optind; extern int opterr; +/* Set to an option character which was unrecognized. */ + +extern int optopt; + /* 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 LONG_OPTIONS argument to getopt_long or getopt_long_only 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. + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. - If the field `flag' is nonzero, it points to a variable that is set + If the field `flag' is not NULL, 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. @@ -66,37 +78,54 @@ extern int opterr; struct option { +#if __STDC__ + const char *name; +#else char *name; +#endif + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ int has_arg; int *flag; int val; }; -#if __STDC__ -extern const struct option *_getopt_long_options; -#else -extern struct option *_getopt_long_options; -#endif - -/* If nonzero, '-' can introduce long-named options. - Set by getopt_long_only. */ - -extern int _getopt_long_only; +/* Names for the values of the `has_arg' field of `struct option'. */ -/* 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; +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 #if __STDC__ -int gnu_getopt (int argc, char **argv, const char *shortopts); -int gnu_getopt_long (int argc, char **argv, const char *shortopts, - const struct option *longopts, int *longind); -int gnu_getopt_long_only (int argc, char **argv, const char *shortopts, - const struct option *longopts, int *longind); -#else -int gnu_getopt (); -int gnu_getopt_long (); -int gnu_getopt_long_only (); +#if defined(__GNU_LIBRARY__) +/* Many other libraries have conflicting prototypes for getopt, with + differences in the consts, in stdlib.h. To avoid compilation + errors, only prototype getopt for the GNU C library. */ +extern int getopt (int argc, char *const *argv, const char *shortopts); +#else /* not __GNU_LIBRARY__ */ +extern int getopt (); +#endif /* not __GNU_LIBRARY__ */ +extern int getopt_long (int argc, char *const *argv, const char *shortopts, + const struct option *longopts, int *longind); +extern int getopt_long_only (int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind); + +/* Internal only. Users should not call this directly. */ +extern int _getopt_internal (int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind, + int long_only); +#else /* not __STDC__ */ +extern int getopt (); +extern int getopt_long (); +extern int getopt_long_only (); + +extern int _getopt_internal (); +#endif /* not __STDC__ */ + +#ifdef __cplusplus +} #endif + +#endif /* _GETOPT_H */ |
