cannot convert 'this' pointer from 'const Square' to 'Square &'

[xgoan]

I've solved it changin the line

Square(rhs.left(),rhs.up(),rhs.right(),rhs.down());
Square(rhs.data()[left],rhs.data()[UP],rhs.data()[right],rhs.data()[DOWN]);

But I would want to know why the other line fails.

[Kumosan]

Are you sure your constructor should not look like this:

#
Square(const QPoint &left,const QPoint &up,const QPoint &right,const QPoint &down);
#

[xgoan]

Same result :s

[Kumosan]

Ok, just realised, this should not work regardless what you do:

Square::Square(const Square &rhs){
Square(rhs.left(),rhs.up(),rhs.right(),rhs.down()) ;
}

As far as I think to know, you cannot call a constructor within a constructor in C++. This would be JAVA