#ifndef __GETOPT_H__
/**
 * DISCLAIMER
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is a part of the w64 mingw-runtime package.
 *
 * The w64 mingw-runtime package and its code is distributed in the hope that it
 * will be useful but WITHOUT ANY WARRANTY.  ALL WARRANTIES, EXPRESSED OR
 * IMPLIED ARE HEREBY DISCLAIMED.  This includes but is not limited to
 * warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 */

#define __GETOPT_H__

/* All the headers include this file. */
#include <crtdefs.h>

#if defined(WINGETOPT_SHARED_LIB)
#if defined(BUILDING_WINGETOPT_DLL)
#define WINGETOPT_API __declspec(dllexport)
#else
#define WINGETOPT_API __declspec(dllimport)
#endif
#else
#define WINGETOPT_API
#endif

#ifdef __cplusplus
extern "C" {
#endif

WINGETOPT_API extern int optind; /* index of first non-option in argv      */
WINGETOPT_API extern int optopt; /* single option character, as parsed     */
WINGETOPT_API extern int opterr; /* flag to enable built-in diagnostics... */
                                 /* (user may set to zero, to suppress)    */

WINGETOPT_API extern char *optarg; /* pointer to argument of current option  */

extern int getopt(int nargc, char *const *nargv, const char *options);

#ifdef _BSD_SOURCE
/*
 * BSD adds the non-standard `optreset' feature, for reinitialisation
 * of `getopt' parsing.  We support this feature, for applications which
 * proclaim their BSD heritage, before including this header; however,
 * to maintain portability, developers are advised to avoid it.
 */
#define optreset __mingw_optreset
extern int optreset;
#endif
#ifdef __cplusplus
}
#endif
/*
 * POSIX requires the `getopt' API to be specified in `unistd.h';
 * thus, `unistd.h' includes this header.  However, we do not want
 * to expose the `getopt_long' or `getopt_long_only' APIs, when
 * included in this manner.  Thus, close the standard __GETOPT_H__
 * declarations block, and open an additional __GETOPT_LONG_H__
 * specific block, only when *not* __UNISTD_H_SOURCED__, in which
 * to declare the extended API.
 */
#endif /* !defined(__GETOPT_H__) */

#if !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__)
#define __GETOPT_LONG_H__

#ifdef __cplusplus
extern "C" {
#endif

struct option /* specification for a long form option...	*/
{
  const char *name; /* option name, without leading hyphens */
  int has_arg;      /* does it take an argument?		*/
  int *flag;        /* where to save its status, or NULL	*/
  int val;          /* its associated status value		*/
};

enum /* permitted values for its `has_arg' field...	*/
{
  no_argument = 0,   /* option never takes an argument	*/
  required_argument, /* option always requires an argument	*/
  optional_argument  /* option may take an argument		*/
};

extern int getopt_long(int nargc, char *const *nargv, const char *options, const struct option *long_options, int *idx);
extern int getopt_long_only(int nargc, char *const *nargv, const char *options, const struct option *long_options,
                            int *idx);
/*
 * Previous MinGW implementation had...
 */
#ifndef HAVE_DECL_GETOPT
/*
 * ...for the long form API only; keep this for compatibility.
 */
#define HAVE_DECL_GETOPT 1
#endif

#ifdef __cplusplus
}
#endif

#endif /* !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) */
