>>791
こんなのはどう

class Vector4
{
float f[4];
public:
float &x,&y,&z,&w;
Vector4() : x(f[0]), y(f[1]), z(f[2]), w(f[3]) {}
float& operator[](int i){return f[i];}
const operator[](int i)const{return f[i];}
};