shithub: rewise

ref: caba3c6ab89bf631a0c12eab72d51d0353e0f782
dir: /src/getopt.h/

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/*
 * Copyright © 2005-2020 Rich Felker, et al.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/* This implementation was taken from musl and modified for RGBDS */

#ifndef RGBDS_EXTERN_GETOPT_H
#define RGBDS_EXTERN_GETOPT_H

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __plan9__
typedef ulong size_t;
typedef Rune wchar_t;
enum { MB_LEN_MAX = 4 };
#define mblen(r,n) (utfnlen(r, n))
#define mbtowc(r,s,n) (chartorune(r,s))
#endif

extern char *optarg;
extern int optind, musl_opterr, musl_optopt, musl_optreset;

struct option {
	char const *name;
	int has_arg;
	int *flag;
	int val;
};

int getopt_long(int argc, char **argv, char const *optstring,
			  const struct option *longopts, int *idx, int longonly);

int getopt_long_only(int argc, char **argv, char const *optstring,
			  const struct option *longopts, int *idx);

#define no_argument        0
#define required_argument  1
#define optional_argument  2

#ifdef __cplusplus
} // extern "C"
#endif

#endif