Program does not take in the value the user input

[hydra89]

The program is not taking in the value the user input for 1 of the attribute.

#ifndef SQUARE_H
#define SQUARE_H

using namespace std;

class square : virtual public shapeTwoD
{
	private:
	int x[3];
	int y[3];

	public:

	square (string, bool, int, int, int, int, int, int, int, int);
	string toString();
}
#endif 

#include "square.h"

square::square (string shapeName, bool shapeContainsWarpSpace, int newX1, int newX2, int newX3, int newX4, int newY1, int newY2, int newY3, int newY4):shapeTwoD(shapeName,shapeContainsWarpSpace)
{
	x[0] = newX1;
	x[1] = newX2;
	x[2] = newX3;
	x[3] = newX4;
	y[0] = newY1;
	y[1] = newY2;
	y[2] = newY3;
	y[3] = newY4;	
	
}

string square::toString()
{
	stringstream oss;
	string toString;

	oss << "name = "<<shapeTwoD::getName()<<"\ncontainsWarpSpace = "<<shapeTwoD::getContainsWarpSpace()<<"\nx1 = "<<x[0]<<"\nx2 = "<<x[1]<<"\nx3 = "<<x[2]<<"\nx4 = "<<x[3]<<"\ny1 = "<<y[0]<<"\ny2 = "<<y[1]<<"\ny3 = "<<y[2]<<"\ny4 = "<<y[3]<<endl;
	toString=oss.str();
	return toString;
}



int main()
{
	square s("square",false,1,2,3,4,1,2,3,4);
	cout<<"\nx4 = "<<s.getX4()<<endl<<endl;
	cout<<s.toString()<<endl;
	return 0;
};

However, my program takes in x4 with the values of y1.

name = square
containsWarpSpace = 0
x1 = 1
x2 = 2
x3 = 3
x4 = 1
y1 = 1
y2 = 2
y3 = 3
y4 = 4

If I change the value of y1 to another value, x4 is changed automatically.
May I know why is wrong with my codes?

[pogrady]

Can we see your output code?

[hydra89]

Thank you for the reply.

This is the output code for

square s("square",false,1,2,3,4,1,2,3,4);

name = square
containsWarpSpace = 0
x1 = 1
x2 = 2
x3 = 3
x4 = 1
y1 = 1
y2 = 2
y3 = 3
y4 = 4

Everything works perfectly when i change the array size to x[4] but i cannot get the reason why.

[nixer526]

The problem is with this

int x[3];
int y[3];

Although computers read from 0, but when declaring, it doesn't start from 0.

What I mean is that arrays are like x[0] ~ x[3], but when declaring int x[4] because there will be 4 memory being used.

[hydra89]

Okay! I get it now.

Thanks nixer526 for the explaination :)