mirror of https://github.com/vitalif/GPX
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
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/*
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Newsgroups: mod.std.unix
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Subject: public domain AT&T getopt source
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Date: 3 Nov 85 19:34:15 GMT
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Here's something you've all been waiting for: the AT&T public domain
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source for getopt(3). It is the code which was given out at the 1985
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UNIFORUM conference in Dallas. I obtained it by electronic mail
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directly from AT&T. The people there assure me that it is indeed
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in the public domain.
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25/1/2005 Henry Thomas <me(at)henri.net>
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Ported this original AT&T version of 'getopt' to windows.
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Added documentation to this header, so know what everything does.
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*/
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#ifndef GETOPT_H_
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#define GETOPT_H_
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#ifdef HAS_GETOPT_H
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# include <getopt.h>
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#else
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int opterr;
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/* If the value of the 'opterr' variable is nonzero, then getopt prints an
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error message to the standard error stream if it encounters an unknown option
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character or an option with a missing required argument. The windows version
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reports the error using a message box. This is the default behavior. If you
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set this variable to zero, getopt does not print any messages, but it still
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returns the character ? to indicate an error. */
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extern int optopt;
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/* When getopt encounters an unknown option character or an option with a
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missing required argument, it stores that option character the 'optopt'
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variable. You can use this for providing your own diagnostic messages. */
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extern int optind;
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/* The 'optind' variable is set by getopt to the index of the next element of
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the argv array to be processed. Once getopt has found all of the option
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arguments, you can use this variable to determine where the remaining
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non-option arguments begin. The initial value of this variable is 1. */
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extern char *optarg;
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/* The 'optarg' variable is set by getopt to point at the value of the
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option argument, for those options that accept arguments. */
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int getopt(int argc, char **argv, char *opts);
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/* The getopt function gets the next option argument from the argument list
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specified by the argv and argc arguments. Normally these values come directly
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from the arguments received by main.
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The options argument is a string that specifies the option characters that are
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valid for this program. An option character in this string can be followed
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by a colon (':') to indicate that it takes a required argument. */
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#ifdef WIN32
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#ifndef HAS_WIN_CLI
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#define HAS_WIN_GUI 1
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#endif
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/* Define 'HAS_WIN_CLI' if you plan to use this version of getopt in a
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windows console application */
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#define MAX_ARGC 32
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/* This is the maximum argument count that 'getargv' will return. */
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char **getargv(char *cl, int *argc);
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/* Parse a single command line sting and convert it into an argc/argv pair
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compatible with getopt */
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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 /* HAS_GETOPT_H */
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#endif /* GETOPT_H_ */
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