text: /* Getopt for Microsoft C
  This code is a modification of the Free Software Foundation, Inc.
  Getopt library for parsing command line argument the purpose was
  to provide a Microsoft Visual C friendly derivative. This code
  provides functionality for both Unicode and Multibyte builds.
  
  Date: 02/03/2011 - Ludvik Jerabek - Initial Release
  Version: 1.0
  Comment: Supports getopt, getopt_long, and getopt_long_only
  and POSIXLY_CORRECT environment flag
  License: LGPL
  
  Revisions:
  
  02/03/2011 - Ludvik Jerabek - Initial Release
  02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
  07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
  08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
  08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
  02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
  08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
  10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features
  
  **DISCLAIMER**
  THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
  EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
  EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
  APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
  DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
  USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
  PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
  YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
  EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  */
  #ifndef __GETOPT_H_
  	#define __GETOPT_H_
  
  	#ifdef _GETOPT_API
  		#undef _GETOPT_API
  	#endif
  
  	#if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
  		#error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
  	#elif defined(STATIC_GETOPT)
  		#pragma message("Warning static builds of getopt violate the Lesser GNU Public License")
  		#define _GETOPT_API
  	#elif defined(EXPORTS_GETOPT)
  		#pragma message("Exporting getopt library")
  		#define _GETOPT_API __declspec(dllexport)
  	#else
  		#pragma message("Importing getopt library")
  		#define _GETOPT_API __declspec(dllimport)
  	#endif
  
  	// Change behavior for C\C++
  	#ifdef __cplusplus
  		#define _BEGIN_EXTERN_C extern "C" {
  		#define _END_EXTERN_C }
  		#define _GETOPT_THROW throw()
  	#else
  		#define _BEGIN_EXTERN_C
  		#define _END_EXTERN_C
  		#define _GETOPT_THROW
  	#endif
  
  	// Standard GNU options
  	#define null_argument		0	/*Argument Null*/
  	#define no_argument			0	/*Argument Switch Only*/
  	#define required_argument	1	/*Argument Required*/
  	#define optional_argument	2	/*Argument Optional*/	
  
  	// Shorter Options
  	#define ARG_NULL	0	/*Argument Null*/
  	#define ARG_NONE	0	/*Argument Switch Only*/
  	#define ARG_REQ		1	/*Argument Required*/
  	#define ARG_OPT		2	/*Argument Optional*/
  
  	#include <string.h>
  	#include <wchar.h>
  
  _BEGIN_EXTERN_C
  
  	extern _GETOPT_API int optind;
  	extern _GETOPT_API int opterr;
  	extern _GETOPT_API int optopt;
  
  	// Ansi
  	struct option_a
  	{
  		const char* name;
  		int has_arg;
  		int *flag;
  		char val;
  	};
  	extern _GETOPT_API char *optarg_a;
  	extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW;
  	extern _GETOPT_API int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
  	extern _GETOPT_API int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
  
  	// Unicode
  	struct option_w
  	{
  		const wchar_t* name;
  		int has_arg;
  		int *flag;
  		wchar_t val;
  	};
  	extern _GETOPT_API wchar_t *optarg_w;
  	extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW;
  	extern _GETOPT_API int getopt_long_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
  	extern _GETOPT_API int getopt_long_only_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;	
  	
  _END_EXTERN_C
  
  	#undef _BEGIN_EXTERN_C
  	#undef _END_EXTERN_C
  	#undef _GETOPT_THROW
  	#undef _GETOPT_API
  
  	#ifdef _UNICODE
  		#define getopt getopt_w
  		#define getopt_long getopt_long_w
  		#define getopt_long_only getopt_long_only_w
  		#define option option_w
  		#define optarg optarg_w
  	#else
  		#define getopt getopt_a
  		#define getopt_long getopt_long_a
  		#define getopt_long_only getopt_long_only_a
  		#define option option_a
  		#define optarg optarg_a
  	#endif
  #endif	// __GETOPT_H_
  