#ifndef __GLOBAL_H_
#define __GLOBAL_H_

/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/* 
 * Mow-Song, Ng 2/9/2002
 * msng@mmu.edu.my
 * http://www.pesona.mmu.edu.my/~msng
 *
 * I do not claim copyright to the code, but if you use them or modify them,
 * please drop me a mail.
 *
 */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/

/* disable unused variabled warning */
#pragma warning (disable : 4101)

#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <stdarg.h>
#include <sys/stat.h>
#include "memchk.h"

typedef enum {FALSE, TRUE} Boolean;
typedef unsigned long ULONG;

typedef double Real;

#define eps			1.e-12
#define MaxReal	1.0e+100
#define MaxDouble MaxReal
//#define MaxReal	1.7976931348623157e+308

#define MIN(x,y) (((x)<(y))?(x):(y))
#define MAX(x,y) (((x)>(y))?(x):(y))
#define ROUND(a)	(((a)<0)?(int)((a)-0.5):(int)((a)+0.5))
#define BOUND(a)	((a)<0.0? 0 : ((a)>255.0? 255 : a))
#define RINT(x)	(int)floor(x+0.5)	// same as ROUND

/* GCC - math.h */
#define M_E          2.7182818284590452354
#define M_LOG2E		1.4426950408889634074
#define M_LOG10E	   0.43429448190325182765
#define M_LN2		   0.69314718055994530942
#define M_LN10		   2.30258509299404568402
#define M_PI		   3.14159265358979323846
#define M_PI_2		   1.57079632679489661923
#define M_PI_4		   0.78539816339744830962
#define M_1_PI		   0.31830988618379067154
#define M_2_PI		   0.63661977236758134308
#define M_2_SQRTPI	1.12837916709551257390
#define M_SQRT2		1.41421356237309504880
#define M_SQRT1_2	   0.70710678118654752440
#define PI	         M_PI
#define PI2		      M_PI_2
#define SQRT2			M_SQRT2
#define ONELOG2		M_LOG2E

Real MOD (Real x, Real N);
Real square (Real x);
int isquare (int x);
int sign(Real x);
int log2 (int x);
Real FindMax(Real *input, int size);
Real FindMin(Real *input, int size);
void FindMaxMin(Real *input, int size, Real *Max, Real *Min);
Real Sum(Real *input, int size);
void AddValue(Real *input, int size, double value);
void WaitKey(void);
int GetFileLength (char *FileName);
void Error(char *fmt, ...);
void Warning(char *fmt, ...);
#endif