core/Vector.hpp

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/*
  This file is part of OpenFLUID software
  Copyright (c) 2007-2010 INRA-Montpellier SupAgro


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 == Other Usage ==

  Other Usage means a use of OpenFLUID that is inconsistent with the GPL
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*/


#ifndef __VECTOR_HPP__
#define __VECTOR_HPP__


#include <iostream>
#include <openfluid/dllexport.hpp>
#include <openfluid/base/OFException.hpp>


namespace openfluid { namespace core {


template <class T>
class DLLEXPORT Vector
{
  protected :
    T* m_Data;
    unsigned long m_Size;

    bool allocate(unsigned long Size);

    void init();

    static void copy(const Vector& Source, Vector& Dest);

  public :

    Vector();

    Vector(const Vector &Vector);

    Vector(unsigned long Size);

    Vector(unsigned long Size, T InitValue);

    Vector(T* Data, unsigned long Size);

    ~Vector();

    unsigned long getSize() const { return m_Size; };

    unsigned long size() const { return getSize(); };

    T* getData() const { return m_Data; };

    void setData(T* Data, unsigned long Size);

    T getElement(unsigned long Index) const;

    inline T at(unsigned long Index) const { return getElement(Index); };

    inline T get(unsigned long Index) const { return getElement(Index); };


    void setElement(unsigned long Index, T Element);

    inline void set(unsigned long Index, T Element) { setElement(Index,Element); };


    T& operator[](unsigned long Index);

    Vector<T>& operator = (const Vector &A);

    void fill(const T& Val);


    void clear();

};

// =====================================================================
// =====================================================================

template <class T>
Vector<T>::Vector()
{
  init();
}


// =====================================================================
// =====================================================================

template <class T>
Vector<T>::Vector(const Vector &A)
{
  init();

  if (!allocate(A.m_Size)) throw openfluid::base::OFException("OpenFLUID framework","Vector::Vector(const Vector)","Cannot allocate memory");

  std::copy(A.m_Data, A.m_Data + A.m_Size, m_Data);

}


// =====================================================================
// =====================================================================

template <class T>
Vector<T>::Vector(unsigned long Size)
{
  init();

  if (!allocate(Size)) throw openfluid::base::OFException("OpenFLUID framework","Vector::Vector(Size)","Cannot allocate memory");
}



// =====================================================================
// =====================================================================
template <class T>
Vector<T>::Vector(unsigned long Size, T InitValue)
{
  init();


  if (!allocate(Size)) throw openfluid::base::OFException("OpenFLUID framework","Vector::Vector(Size,T)","Cannot allocate memory");


  if (m_Data != NULL)
  {
    unsigned long i;
    for (i=0;i<m_Size;i++) m_Data[i] = InitValue;
  }

}


// =====================================================================
// =====================================================================


template <class T>
Vector<T>::Vector(T* Data, unsigned long Size)
{
  init();

  if (!allocate(Size)) throw openfluid::base::OFException("OpenFLUID framework","Vector::Vector(T*,Size)","Cannot allocate memory");

  std::copy(Data, Data + Size, m_Data);

}


// =====================================================================
// =====================================================================

template <class T>
Vector<T>::~Vector()
{
  if (m_Data != NULL) clear();
}


// =====================================================================
// =====================================================================

template <class T>
bool Vector<T>::allocate(unsigned long Size)
{

  if (Size > 0)
  {
    m_Data = new T[Size];
    if (m_Data != NULL) m_Size = Size;
    else
    {
      return false;
    }
  }

  return true;


}

// =====================================================================
// =====================================================================

template <class T>
void Vector<T>::setData(T* Data, unsigned long Size)
{
  clear();

  if (!allocate(Size)) throw openfluid::base::OFException("OpenFLUID framework","Vector::setData","Cannot allocate memory");

  if (m_Data != NULL) std::copy(Data, Data + Size, m_Data);

}


// =====================================================================
// =====================================================================

template <class T>
T Vector<T>::getElement(unsigned long Index) const
{
  if (Index >= m_Size) throw openfluid::base::OFException("OpenFLUID framework","Vector::getElement","element access range error");
  return m_Data[Index];
}


// =====================================================================
// =====================================================================

template <class T>
void Vector<T>::setElement(unsigned long Index, T Element)
{
  if (Index >= m_Size) throw openfluid::base::OFException("OpenFLUID framework","Vector::setElement","element access range error");
  m_Data[Index] = Element;
}


// =====================================================================
// =====================================================================


template <class T>
T& Vector<T>::operator[](unsigned long Index)
{
  if (Index >= m_Size) throw openfluid::base::OFException("OpenFLUID framework","Vector::operator[]","element access range error");
  return m_Data[Index];
}

// =====================================================================
// =====================================================================

template <class T>
Vector<T>& Vector<T>::operator=(const Vector &A)
{

  if (this == &A) return *this; // in case somebody tries assign array to itself

  clear();

  allocate(A.m_Size);
  std::copy(A.m_Data, A.m_Data + A.m_Size, m_Data);

  return *this;
}

// =====================================================================
// =====================================================================


template <class T>
void Vector<T>::init()
{
  m_Data = NULL;
  m_Size = 0;
}


// =====================================================================
// =====================================================================


template <class T>
void Vector<T>::fill(const T& Val)
{
  std::fill(m_Data, m_Data + m_Size,Val);
}


// =====================================================================
// =====================================================================


template <class T>
void Vector<T>::clear()
{
  delete [] m_Data;
  init();
}

// =====================================================================
// =====================================================================

template <class T>
void Vector<T>::copy(const Vector& Source, Vector& Dest)
{
  Dest.clear;
  Dest.allocate(Source.m_Size);
  for (unsigned long i = 0; i < Source.m_Size;i++)
  {
    Dest.m_Data[i] = Source.m_Data[i];
  }
}



} }


#endif