Modification Etape 3 et Etape 4 : Ajout d'opérateurs friend.

This commit is contained in:
Yohan Boujon 2023-09-17 23:17:59 +02:00
parent 9d2afb792a
commit 5ae0b0df8b
5 changed files with 40 additions and 10 deletions

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@ -32,9 +32,10 @@ Point2D Point2D::operator+(const Point2D& other)
return {this->_x + other._x, this->_y + other._y}; return {this->_x + other._x, this->_y + other._y};
} }
Point2D Point2D::operator*(int other) // Question : Doit-t-on réellement ajouter friend pour pouvoir faire une opération dans les deux sens avec Point2D ?
Point2D operator*(int value, const Point2D& point)
{ {
return {this->_x*other, this->_y*other}; return {point._x*value, point._y*value};
} }
int main(void) int main(void)
@ -50,7 +51,7 @@ int main(void)
Point2D A(1,2), B(3,4),C; Point2D A(1,2), B(3,4),C;
C = A + B; C = A + B;
C.Affiche(); C.Affiche();
C = A*5; C = 5*A;
C.Affiche(); C.Affiche();
return 0; return 0;
} }

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@ -10,7 +10,7 @@ class Point2D {
void Saisie(float x, float y); void Saisie(float x, float y);
void Affiche(); void Affiche();
Point2D operator+(const Point2D& other); Point2D operator+(const Point2D& other);
Point2D operator*(int left); friend Point2D operator*(int value, const Point2D& point);
private: private:
float _x,_y; float _x,_y;
}; };

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@ -38,9 +38,9 @@ Point2D Point2D::operator+(const Point2D& other)
return { this->_x + other._x, this->_y + other._y }; return { this->_x + other._x, this->_y + other._y };
} }
Point2D Point2D::operator*(int other) Point2D operator*(int value, const Point2D& point)
{ {
return { this->_x * other, this->_y * other }; return {point._x*value, point._y*value};
} }
Point3D::Point3D() Point3D::Point3D()
@ -81,9 +81,29 @@ Point3D Point3D::operator+(const Point3D& other)
return { this->_x + other._x, this->_y + other._y, this->_z + other._z }; return { this->_x + other._x, this->_y + other._y, this->_z + other._z };
} }
Point3D Point3D::operator*(int left) Point3D Point3D::operator+(const Point2D& other)
{ {
return { this->_x*left, this->_y*left , this->_z*left }; Point3D returnOther(other,0.0f);
return { this->_x + returnOther._x, this->_y + returnOther._y, this->_z + returnOther._z };
}
/*
Point3D operator+(const Point2D& point2d, const Point3D& point3d)
{
Point3D returnOther(point2d,0.0f);
return { point3d._x + returnOther._x, point3d._y + returnOther._y, point3d._z + returnOther._z };
}
*/
Point3D operator*(int value, const Point3D& point)
{
return { point._x*value, point._y*value , point._z*value };
}
// Dans les deux sens, un second operator* doit être crée.
Point3D operator*(const Point3D& point, int value)
{
return (value*point);
} }
int main(void) int main(void)
@ -98,5 +118,8 @@ int main(void)
auto pointE = pointB+pointD; auto pointE = pointB+pointD;
pointE.Affiche(); pointE.Affiche();
(pointD*3).Affiche(); (pointD*3).Affiche();
std::cout << "Ajout d'un point2D (A, [2,3]) à un point3D (D, [1,1,1]) :" << std::endl;
auto superPoint = pointD+pointA;
superPoint.Affiche();
return 0; return 0;
} }

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@ -10,7 +10,7 @@ class Point2D {
void Saisie(float x, float y); void Saisie(float x, float y);
void Affiche(); void Affiche();
Point2D operator+(const Point2D& other); Point2D operator+(const Point2D& other);
Point2D operator*(int left); friend Point2D operator*(int value, const Point2D& point);
protected: protected:
float _x,_y; float _x,_y;
}; };

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@ -14,7 +14,13 @@ class Point3D : public Point2D
void Affiche(); void Affiche();
// Bonus avec les operateurs. // Bonus avec les operateurs.
Point3D operator+(const Point3D& other); Point3D operator+(const Point3D& other);
Point3D operator*(int left); // Empêche une erreur lorsque point3D+point2D
Point3D operator+(const Point2D& other);
// Upgrade un point2D en point3D s'il est additioné avec ce dernier
// Ne fonctionne pas à cause de problème d'overload...
//friend Point3D operator+(const Point2D& point2d, const Point3D& point3d);
friend Point3D operator*(int value, const Point3D& point);
friend Point3D operator*(const Point3D& point, int value);
private: private:
float _z; float _z;
}; };