title: C++ initialize all values of a member array for a class
body: <p>In C++ how  initialize all values of a member array for a class?</p>
  
  <pre><code>#define MAX_MATRIX 20
  Class Matrix {
  public:   
           Matrix(); //constructor
  protected:
           int n[MAX_MATRIX];   // note cannot do = { 0} or w/e here
  };
  
  Matrix::Matrix()
  {
       // how to set all n to -1?
  }
  </code></pre>