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/*



Originally timeval.h by Wu Yongwei



Fast Artificial Neural Network Library (fann)

Copyright (C) 2003-2012 Steffen Nissen (sn@leenissen.dk)



This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.



This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

Lesser General Public License for more details.



You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/  

	

/*

 * timeval.h    1.0 01/12/19

 *

 * Defines gettimeofday, timeval, etc. for Win32

 *

 * By Wu Yongwei

 *

 */ 

	

#ifndef _TIMEVAL_H

#define _TIMEVAL_H

	

#ifdef _WIN32

	

/* Modified to compile as ANSI C without include of windows.h

   If this gives problems with future Windows/MSC versions, then

   uncomment the USE_WINDOWS_H definition to switch back. */ 

/* #define USE_WINDOWS_H */ 

#ifdef USE_WINDOWS_H

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

#else	/* 
 */
#ifndef _INC_WINDOWS

#define VOID void

#define WINAPI __stdcall

#define OUT

#define WINBASEAPI


typedef long LONG;

typedef unsigned long DWORD;

typedef __int64 LONGLONG;


typedef struct _FILETIME
{
	
DWORD dwLowDateTime;
	
DWORD dwHighDateTime;

} FILETIME, *LPFILETIME;


typedef union _LARGE_INTEGER
{
	

		/* Removed unnamed struct,

		 * it is not ANSI C compatible */ 

		/* struct {

		 * DWORD LowPart;

		 * LONG HighPart;

		 * }; */ 

		struct
	{
		
DWORD LowPart;
		
LONG HighPart;
	
} u;
	 
LONGLONG QuadPart;
 
} LARGE_INTEGER;



WINBASEAPI VOID WINAPI 
 GetSystemTimeAsFileTime(OUT LPFILETIME lpSystemTimeAsFileTime);


#endif	/* _INC_WINDOWS */

#endif	/* USE_WINDOWS_H */

	

#include <time.h>

	

#ifndef __GNUC__

#define EPOCHFILETIME (116444736000000000i64)

#else	/* 
 */
#define EPOCHFILETIME (116444736000000000LL)

#endif	/* 
 */
	
struct timeval
{
	
long tv_sec;				/* seconds */
	 
 long tv_usec;			/* microseconds */
 
};


struct timezone
{
	
int tz_minuteswest;		/* minutes W of Greenwich */
	 
 int tz_dsttime;			/* type of dst correction */
 
};


__inline int gettimeofday(struct timeval *tv, struct timezone *tz) 

{
	
FILETIME ft;
	
LARGE_INTEGER li;
	
__int64 t;
	
static int tzflag;

	

if(tv)
		

	{
		
GetSystemTimeAsFileTime(&ft);
		


			/* The following two lines have been modified to use the named

			 * union member. Unnamed members are not ANSI C compatible. */ 

			li.u.LowPart = ft.dwLowDateTime;
		
li.u.HighPart = ft.dwHighDateTime;
		
t = li.QuadPart;		/* In 100-nanosecond intervals */
		
t -= EPOCHFILETIME;	/* Offset to the Epoch time */
		
t /= 10;				/* In microseconds */
		
tv->tv_sec = (long) (t / 1000000);
		
tv->tv_usec = (long) (t % 1000000);
	
}
	

if(tz)
		

	{
		
if(!tzflag)
			

		{
			
_tzset();
			
tzflag++;
		
}
		
tz->tz_minuteswest = _timezone / 60;
		
tz->tz_dsttime = _daylight;
	
}
	

return 0;

}




#else	/* _WIN32 */

	

#include <sys/time.h>

	

#endif	/* _WIN32 */

	

#endif	/* _TIMEVAL_H */