Tuple.H

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//
// This software is copyright (C) by the Lawrence Berkeley
// National Laboratory.  Permission is granted to reproduce
// this software for non-commercial purposes provided that
// this notice is left intact.
// 
// It is acknowledged that the U.S. Government has rights to
// this software under Contract DE-AC03-765F00098 between
// the U.S.  Department of Energy and the University of
// California.
//
// This software is provided as a professional and academic
// contribution for joint exchange. Thus it is experimental,
// is provided ``as is'', with no warranties of any kind
// whatsoever, no support, no promise of updates, or printed
// documentation. By using this software, you acknowledge
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//

#ifndef CH_TUPLE_H
#define CH_TUPLE_H

//
// $Id: Tuple.H,v 1.3 2003/07/29 23:04:41 bvs Exp $
//

#include <cstdlib>
using namespace std;

#include <cassert>

//

template <class T, size_t N>
class Tuple
{
public:
 
    Tuple ();

  //explicit Tuple (const T* v);
    //
    // The copy constructor.
    //
    Tuple (const Tuple& rhs);
    //
    // The copy assignment operator.
    //
    Tuple& operator= (const Tuple& rhs);
 
    T& operator[] (int i);
 
    const T& operator[] (int i) const;
 
    operator const T* () const;

protected:
    //
    // The underlying vector of T representing the Tuple.
    //
    T vect[N];
};

//
// Inlines.
//

template <class T, size_t N>
inline
Tuple<T,N>::Tuple()
{}

template <class T, size_t N>
inline
T&
Tuple<T,N>::operator[] (int i)
{
    assert(0 <= i && i < (int)N);
    return vect[i];
}

template <class T, size_t N>
inline
const T&
Tuple<T,N>::operator[] (int i) const
{
    assert(0 <= i && i < (int)N);
    return vect[i];
}

template <class T, size_t N>
inline
Tuple<T,N>::operator const T* () const
{
    return &vect[0];
}


//template <class T, size_t N>
//Tuple<T,N>::Tuple (const T* v)
//{
//    assert(v != 0);
//    for (size_t i = 0; i < N; ++i)
//        vect[i] = v[i];
//}

template <class T, size_t N>
Tuple<T,N>::Tuple (const Tuple<T,N>& rhs)
{
    for (size_t i = 0; i < N; ++i)
        vect[i] = rhs.vect[i];
}

template <class T, size_t N>
Tuple<T,N>&
Tuple<T,N>::operator= (const Tuple<T,N>& rhs)
{
    for (size_t i = 0; i < N; ++i)
        vect[i] = rhs.vect[i];
    return *this;
}

#endif /*CH_TUPLE_H*/

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