The members of the structure return inf. C++

[nishika]

Class which contains the object of the structure vector2d

class Foo {
public:

Foo() {

acceleration_force = vector2d();

//acceleration_force(); не видит конструктора вообще

cout << "acc x: " << acceleration_force.x << " y: " << acceleration_force.y << endl;

}

private:

vector2d acceleration_force;

};

My structure vector2d

#ifndef VECTORS_H

#define VECTORS_H

struct vector2d {
vector2d(float y, float x) : y(y), x(x) {}
vector2d() : y(-1), x(0) {}

float y, x;

};
#endif /* VECTORS_H /

It's working. acc x: inf y: -inf

Although the same code works successfully https://ideone.com/Xj2SVb

I'll take it out with help. ncurses Function printw♪

---

I seem to have a problem with the signs and references, as the debager shows everything right.

Function AddAcceleration:

void AddAcceleration(vector2d direction, float value) {

acceleration_force = (direction.normal()value) * mass;

}

Function vector2d::normal()

vector2d normal() {

vector2d result(this);

result.x = result.length() / result.x;

result.y = result.length() / result.y;

return result;

}

Function GetForce:

vector2d GetForce() {

return acceleration_force;

}

Function vector2d::lenght:

float length() {

return sqrt(yy+xx);

}

Removed classes Foo:

private:

float mass;

vector2d acceleration_force;

float speed;

vector2d friction;

vector2d force;

vector2d direction;

GetMass()♪ GetSpeed() Just ghetters.

Section of the code that turns the vector values on the screen:

foo = Foo();

foo.AddAcceleration(vector2d(-1,0), 2);

printw("%f, %f", mov.GetForce().x, mov.GetForce().y);

Also, please see the classes where I overloaded the cameras. and + structures vector2d♪ They don't work either, I understand.

vector2d operator+(const vector2d& right) const {

vector2d result(*this); // Make a copy of myself.

result.x += right.x;

result.y += right.y;

return result;

}

vector2d operator*(const float right) const {

vector2d result(*this);

result.x *= right;

result.y *= right;

return result;

}

[charlenef]

I figured out what the problem is. inf♪ -inf♪
When х = 0, y = -1, considered length sqrt( -1 * -1 + 0 * 0) == 1, variable x becomes x = 1 / x = 1 / 0 = inf, further the length is already considered as sqrt ( -1 * -1 * inf * inf)♪ Plus, we had to split the coordinates for the length of the vector. And multiplying. mass Yeah. nanOh, well. mass not initiated