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95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
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#ifndef __GETOPT_H__
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/**
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* DISCLAIMER
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is a part of the w64 mingw-runtime package.
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*
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* The w64 mingw-runtime package and its code is distributed in the hope that it
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* will be useful but WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESSED OR
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* IMPLIED ARE HEREBY DISCLAIMED. This includes but is not limited to
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* warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#define __GETOPT_H__
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/* All the headers include this file. */
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#include <crtdefs.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 nargc, char * const *nargv, const char *options);
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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 nargc, char * const *nargv, const char *options,
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const struct option *long_options, int *idx);
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extern int getopt_long_only(int nargc, char * const *nargv, const char *options,
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const struct option *long_options, int *idx);
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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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