15670430创建于 2020年12月28日历史提交
/*
 * Portions Copyright (c) 1987, 1993, 1994
 * The Regents of the University of California.  All rights reserved.
 *
 * Portions Copyright (c) 2003-2012, PostgreSQL Global Development Group
 *
 * src/include/getopt_long.h
 */
#ifndef GETOPT_LONG_H
#define GETOPT_LONG_H

#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif

/* These are picked up from the system's getopt() facility. */
extern int opterr;
extern int optind;
extern int optopt;
extern char* optarg;

#ifndef HAVE_STRUCT_OPTION

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

#define no_argument 0
#define required_argument 1
#endif

#ifndef HAVE_GETOPT_LONG

extern int getopt_long(
    int argc, char* const argv[], const char* optstring, const struct option* longopts, int* longindex);
#endif

#endif /* GETOPT_LONG_H */