Vector.hpp

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/*
 
  This file is part of OpenFLUID software
  Copyright(c) 2007, INRA - Montpellier SupAgro
 
 
 == GNU General Public License Usage ==
 
  OpenFLUID is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  OpenFLUID is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with OpenFLUID. If not, see <http://www.gnu.org/licenses/>.
 
 
 == Other Usage ==
 
  Other Usage means a use of OpenFLUID that is inconsistent with the GPL
  license, and requires a written agreement between You and INRA.
  Licensees for Other Usage of OpenFLUID may use this file in accordance
  with the terms contained in the written agreement between You and INRA.
  
*/
 
 
/**
  @file Vector.hpp
 
  @author Jean-Christophe Fabre <jean-christophe.fabre@inra.fr>
*/
 
 
#ifndef __OPENFLUID_CORE_VECTOR_HPP__
#define __OPENFLUID_CORE_VECTOR_HPP__
 
 
#include <iostream>
#include <memory>
 
#include <openfluid/dllexport.hpp>
#include <openfluid/base/FrameworkException.hpp>
 
 
namespace openfluid { namespace core {
 
 
/**
  Template class for vector data
*/
template <class T>
class OPENFLUID_API Vector
{
  public:
 
    typedef T* iterator;
 
    typedef const T* const_iterator;
 
 
  protected :
 
    std::unique_ptr<T[]> m_Data;
 
    unsigned long m_Size;
 
    bool allocate(unsigned long Size);
 
    void init();
 
    static void copy(const Vector& Source, Vector& Dest);
 
 
  public :
 
    /**
      Default constructor, creates an empty vector
    */
    Vector();
 
    /**
      Copy constructor
    */
    Vector(const Vector& Other);
 
    /**
      Constructor, creates a vector containing Size elements
    */
    Vector(unsigned long Size);
 
    /**
      Constructor, creates a vector containing Size elements, initialized with value InitValue
    */
    Vector(unsigned long Size, const T& InitValue);
 
    /**
      Constructor, creates a vector of size Size, containing Data
    */
    Vector(T* Data, unsigned long Size);
 
    /**
      Assignment operator
    */
    Vector<T>& operator=(const Vector& Other);
 
    /**
      Move assignment operator
    */
    Vector<T>& operator=(Vector&& Other);
 
    /**
      Destructor
    */
    virtual ~Vector() = default;
 
    /**
      Returns the size of the vector
      @return size of the vector
    */
    unsigned long getSize() const
    {
      return m_Size;
    }
 
    /**
      Returns the size of the vector
      @return size of the vector
    */
    unsigned long size() const
    {
      return getSize();
    }
 
    /**
      Returns a pointer to the content of the vector (like C arrays)
    */
    T* data() const
    {
      return m_Data.get();
    }
 
    /**
      Sets data for the vector from Data and with size Size
    */
    void setData(T* Data, unsigned long Size);
 
    /**
      Returns the element of the vector for index Index
    */
    T getElement(unsigned long Index) const;
 
    /**
      Returns the element of the vector for index Index
    */
    inline T at(unsigned long Index) const
    {
      return getElement(Index);
    }
 
    /**
      Returns the element of the vector for index Index
    */
    inline T get(unsigned long Index) const
    {
      return getElement(Index);
    }
 
 
    /**
      Sets a new value for element at the given index
    */
    void setElement(unsigned long Index, const T& Val);
 
    /**
      Sets a new value for element at the given index
    */
    inline void set(unsigned long Index, const T& Val)
    {
      setElement(Index,Val);
    }
 
 
    /**
      Operator to set a new value for element given between []
    */
    T& operator[](unsigned long Index);
 
 
    /**
      Fills the vector with given value
    */
    void fill(const T& Val);
 
 
    /**
      Clears the vector (empty and size is 0)
    */
    void clear();
 
    /**
      Returns an iterator referring to the first element in the vector
      @return an iterator to the first element in the vector
    */
    inline iterator begin()
    {
      return &m_Data[0];
    }
 
    /**
      Returns a constant iterator referring to the first element in the vector
      @return a constant iterator to the first element in the vector
    */
    inline const_iterator begin() const
    {
      return &m_Data[0];
    }
 
    /**
      Returns an iterator referring to the past-the-end element in the vector
      @return an iterator to the past-the-end element in the vector
    */
    inline iterator end()
    {
      return &m_Data[m_Size];
    }
 
    /**
      Returns a constant iterator referring to the past-the-end element in the vector
      @return a constant iterator to the past-the-end element in the vector
    */
    inline const_iterator end() const
    {
      return &m_Data[m_Size]; 
    }
 
};
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>::Vector()
{
  init();
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>::Vector(const Vector& Other)
{
  init();
 
  if (!allocate(Other.m_Size))
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"Cannot allocate memory");
  }
 
  std::copy(Other.m_Data.get(), Other.m_Data.get() + Other.m_Size, m_Data.get());
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>::Vector(unsigned long Size)
{
  init();
 
  if (!allocate(Size))
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"Cannot allocate memory");
  }
 
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>::Vector(unsigned long Size, const T& InitValue)
{
  init();
 
  if (!allocate(Size))
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"Cannot allocate memory");
  }
 
  if (m_Data)
  {
    std::fill(m_Data.get(), m_Data.get() + Size, InitValue);
  }
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>::Vector(T* Data, unsigned long Size)
{
  init();
 
  if (!allocate(Size))
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"Cannot allocate memory");
  }
 
  std::copy(Data, Data + Size, m_Data.get());
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>& Vector<T>::operator=(const Vector& Other)
{
  if (this != &Other) // in case somebody tries assign array to itself
  {
    clear();
    allocate(Other.m_Size);
    std::copy(Other.m_Data.get(), Other.m_Data.get() + Other.m_Size, m_Data.get());
  }
 
  return *this;
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
Vector<T>& Vector<T>::operator=(Vector&& Other)
{
  if (this != &Other) // in case somebody tries assign array to itself
  {
    clear();
 
    m_Size = Other.m_Size;
    m_Data = std::move(Other.m_Data);
 
    Other.clear();
  }
 
  return *this;
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
bool Vector<T>::allocate(unsigned long Size)
{
  if (Size > 0)
  {
    m_Data.reset();
    m_Data = std::move(std::make_unique<T[]>(Size));
 
    if (m_Data)
    {
      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::FrameworkException(OPENFLUID_CODE_LOCATION,"Cannot allocate memory");
  }
 
  std::copy(Data, Data + Size, m_Data.get());
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
T Vector<T>::getElement(unsigned long Index) const
{
  if (Index >= m_Size)
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"element access range error");
  }
 
  return m_Data[Index];
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
void Vector<T>::setElement(unsigned long Index, const T& Val)
{
  if (Index >= m_Size)
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"element access range error");
  }
 
  m_Data[Index] = Val;
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
T& Vector<T>::operator[](unsigned long Index)
{
  if (Index >= m_Size)
  {
    throw openfluid::base::FrameworkException(OPENFLUID_CODE_LOCATION,"element access range error");
  }
 
  return m_Data[Index];
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
void Vector<T>::init()
{
  m_Data.reset();
  m_Size = 0;
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
void Vector<T>::fill(const T& Val)
{
  std::fill(m_Data.get(), m_Data.get() + m_Size,Val);
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
void Vector<T>::clear()
{
  init();
}
 
 
// =====================================================================
// =====================================================================
 
 
template <class T>
void Vector<T>::copy(const Vector& Source, Vector& Dest)
{
  Dest.clear();
  Dest.allocate(Source.m_Size);
 
  std::copy(Dest.m_Data.get(), Dest.m_Data.get() + Source.m_Size, Source.m_Data.get());
}
 
 
} }  // namespaces
 
 
#endif /* __OPENFLUID_CORE_VECTOR_HPP__ */