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vector.h
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Fri, Jan 3, 06:02

vector.h
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#ifndef __VECTOR_H__
#define __VECTOR_H__
#ifdef _USE_VECTOR_OSTREAM
#include <iosfwd>
#endif
#include <cstddef>
template <class T>
class Vector {
public:
typedef std::size_t size_t;
class iterator
{
size_t i;
Vector<T> *v;
public:
iterator(Vector<T> *v, size_t i = 0)
: v(v), i(i)
{
}
iterator& operator++()
{
++i;
}
iterator& operator--()
{
--i;
}
bool operator!=(const iterator& it)
{
return this->i != it.i;
}
bool operator==(const iterator& it)
{
return !(*this != it);
}
T& operator*()
{
return (*v)[i];
}
};
typedef const iterator const_iterator;
/* For auto implementation */
/* it allows to loop through components
*
* for (auto comp : v)
* {
* // loop content
* }
*/
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
//Virtual accesseurs
virtual const size_t size() const = 0;
/* Accède à la i-ème valeur */
virtual T& operator[](size_t i) = 0;
virtual const T& operator[](size_t i) const = 0;
/* Return the module */
double module() const;
double sq_module() const; // squared module
//Operateurs
/* Operateurs de comparaison */
bool operator==(const Vector<T>&) const;
bool operator!=(const Vector<T>&) const;
bool operator>=(const Vector<T>&) const;
bool operator<=(const Vector<T>&) const;
bool operator>=(double) const;
bool operator<=(double) const;
bool operator>(const Vector<T>&) const;
bool operator<(const Vector<T>&) const;
bool operator>(double) const;
bool operator<(double) const;
/* Dot product */
double operator*(const Vector<T>&) const;
/* For printing a Vector on a ostream */
#ifdef _USE_VECTOR_OSTREAM
void affiche(std::ostream&) const;
#endif
protected: // not stable operations
/* Plus / minus */
Vector<T>& add(const Vector<T>&);
Vector<T>& sub(const Vector<T>&);
/* Scalar multiplication / division */
Vector<T>& mult(double k);
Vector<T>& divide(double k);
Vector<T>& reverse();
Vector<T>& _unit() const;
};
#ifdef _USE_VECTOR_OSTREAM
// forward declaration of ostream
template<class T>
std::ostream& operator<<(std::ostream&, const Vector<T>&);
#endif
#include "vector.tpp"
#endif

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