// Copyright (c) 1999 Philip A. Hardin (pahardin@cs.utexas.edu)
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License v2 or later.


#ifndef GENERAL_h
#define GENERAL_h


#ifndef __GNUC__
#ifndef bool
#define bool int
#endif
#endif

#ifndef false
#define false 0
#endif

#ifndef true
#define true 1
#endif

typedef unsigned char uchar;
typedef unsigned int  uint;
typedef unsigned long ulong;

#ifdef __GNUC__
#if __GNUC__ < 3
#define and &&
#define or  ||
#define not !
#endif

// TODO - what about non-GNU C++ compilers?
#endif

#define forii(limit) for (int i= 0; i <limit; i++)
#define forij(limit) for (int j= 0; j <limit; j++)

#ifndef __GNUC__
#define fori(limit) for (i= 0; i <limit; i++)
#define forj(limit) for (j= 0; j <limit; j++)
#else
#define fori(limit) for (int i= 0; i <limit; i++)
#define forj(limit) for (int j= 0; j <limit; j++)
#endif

#define for_(iter,contain) for (iter=(contain).begin(); iter != (contain).end(); iter++)

//template <class T>  // xlC can't handle this for some reason
//inline T sqr(T v) {return v*v;}
#define sqr(v) ((v)*(v))

template <class T1,class T2>
inline bool isBetween(T1 lim1,T2 x,T1 lim2)
{ return ((lim1 <x)==(x <lim2));}

template <class T1,class T2>
inline bool isBetweenInclusively(T1 lim1,T2 x,T1 lim2)
{ return ((lim1 <=x and x <=lim2) or (lim2 <=x and x <=lim1));}

template <class T1,class T2>
inline bool isBetweenExclusively(T1 lim1,T2 x,T1 lim2)
{ return ((lim1 <x and x <lim2) or (lim2 <x and x <lim1));}

#define ABS(x) (((x)>0)?(x):-(x))
#define roundToLong(x) ((long)(floor(x +0.5)))

// These next two func templates allow STL to be used with classes that
// don't define operator== and operator< .  Just make sure no STL routines
// are used that actually _require_ these operators...!
#ifndef __GNUC__
template <class T>
inline bool operator==(const T& a, const T& b) {return false;}
template <class T>
inline bool operator< (const T& a, const T& b) {return false;}
#endif

extern const int MA_PI;
extern double *sinTbl, *cosTbl;

void InitFixed();
void SleepFor(int val);
double rand(double r);
double factorial(int n);

#endif