108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
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#ifndef __GETOPT_H__
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/*
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* getopt.h
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*
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* $Id: getopt.h,v 1.4 2009/01/04 17:35:36 keithmarshall Exp $
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*
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* Defines constants and function prototypes required to implement
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* the `getopt', `getopt_long' and `getopt_long_only' APIs.
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*
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* This file is part of the MinGW32 package set.
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*
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* Contributed by Keith Marshall <keithmarshall@users.sourceforge.net>
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*
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAIMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Revision: 1.4 $
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* $Author: keithmarshall $
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* $Date: 2009/01/04 17:35:36 $
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*
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*/
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#define __GETOPT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int optind; /* index of first non-option in argv */
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extern int optopt; /* single option character, as parsed */
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extern int opterr; /* flag to enable built-in diagnostics... */
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/* (user may set to zero, to suppress) */
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extern char *optarg; /* pointer to argument of current option */
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extern int getopt( int, char * const [], const char * );
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#ifdef _BSD_SOURCE
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/*
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* BSD adds the non-standard `optreset' feature, for reinitialisation
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* of `getopt' parsing. We support this feature, for applications which
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* proclaim their BSD heritage, before including this header; however,
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* to maintain portability, developers are advised to avoid it.
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*/
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# define optreset __mingw_optreset
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extern int optreset;
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#endif
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#ifdef __cplusplus
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}
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#endif
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/*
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* POSIX requires the `getopt' API to be specified in `unistd.h';
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* thus, `unistd.h' includes this header. However, we do not want
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* to expose the `getopt_long' or `getopt_long_only' APIs, when
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* included in this manner. Thus, close the standard __GETOPT_H__
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* declarations block, and open an additional __GETOPT_LONG_H__
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* specific block, only when *not* __UNISTD_H_SOURCED__, in which
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* to declare the extended API.
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*/
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#endif /* !defined(__GETOPT_H__) */
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#if !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__)
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#define __GETOPT_LONG_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct option /* specification for a long form option... */
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{
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const char *name; /* option name, without leading hyphens */
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int has_arg; /* does it take an argument? */
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int *flag; /* where to save its status, or NULL */
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int val; /* its associated status value */
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};
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enum /* permitted values for its `has_arg' field... */
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{
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no_argument = 0, /* option never takes an argument */
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required_argument, /* option always requires an argument */
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optional_argument /* option may take an argument */
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};
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extern int getopt_long( int, char * const [], const char *, const struct option *, int * );
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extern int getopt_long_only( int, char * const [], const char *, const struct option *, int * );
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/*
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* Previous MinGW implementation had...
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*/
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#ifndef HAVE_DECL_GETOPT
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/*
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* ...for the long form API only; keep this for compatibility.
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*/
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# define HAVE_DECL_GETOPT 1
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) */
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/* $RCSfile: getopt.h,v $Revision: 1.4 $: end of file */
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