Say I have a class that has some properties, like x, y, width and height. In its constructor, I couldn't do this:

class A
{
    public:

    A(int, int, int, int);

    int x;
    int y;
    int width;
    int height;
};

//Wrong and makes little sense name-wise:
A::A(int x, int y, int width, int height)
{
    x = x;
    y = y;
    width = width;
    height = height;
}

First of all, this doesn't really make sense. Second, x, y, width and height become some weird values (-1405737648) when compiled using g++. It does work, however, if I append "a" to the argument names.

What is the optimal way of solving these naming conflicts?