TemplateTools.h

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// -*- C++ -*-
//
// TemplateTools.h is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 2006-2007 David Grellscheid, Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef Template_Tools_H
#define Template_Tools_H

namespace ThePEG {

template <int v>
struct Int2Type
{
  enum { value = v };
};

struct DummyType {};

template <typename T, typename U>
struct BinaryOpTraits;

template <>
struct BinaryOpTraits<double,double> {
  typedef double MulT;
  typedef double DivT;
};

template <>
struct BinaryOpTraits<long double, long double> {
  typedef long double MulT;
  typedef long double DivT;
};

template <>
struct BinaryOpTraits<int,int> {
  typedef int MulT;
  typedef int DivT;
};


enum ImplSelector { Dimensioned, Standard };

typedef Int2Type<Dimensioned> DimensionT;

typedef Int2Type<Standard> StandardT;


template <typename T>
struct TypeTraits
{
  enum { hasDimension = false };
  typedef StandardT DimType;
  static const double baseunit;
};

template<typename T>
const double TypeTraits<T>::baseunit = T(1);

}

#endif

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