MathUtil.h

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//
//##############################################################################
//
//            Nikolai Amelin (C) JINR/Dubna 1999
//
//##############################################################################
//

#ifndef NAMathUtil_h
#define NAMathUtil_h 1

#include <iostream>
#include <cmath>
#include <Rtypes.h>

const double GeV = 1.;
const double fermi = 1.;
const double hbarc = 0.197 * GeV * fermi;
const double N_PI = 3.14159265359;

const double N_INFINITY = 9.0E99;
const double N_SMALL = 1.E-10;

template <class T>
inline void SwapObj(T* a, T* b) {
  T tmp = *a;
  *a = *b;
  *b = tmp;
}

template <class T>
inline void Swap(T& a, T& b) {
  T tmp = a;
  a = b;
  b = tmp;
}

template <class T>
inline T Min(T a, T b) {
  return (a < b) ? a : b;
}

template <class T>
inline T Max(T a, T b) {
  return (a > b) ? a : b;
}

template <class T>
inline T Abs(T a) {
  return (a > 0) ? a : -a;
}

template <class T>
inline T Sign(T A, T B) {
  return (B > 0) ? Abs(A) : -Abs(A);
}
template <class T>
inline T min(T a, T b) {
  return (a < b) ? a : b;
}

template <class T>
inline T max(T a, T b) {
  return (a > b) ? a : b;
}

#endif