Thread: Treat members as an array? (opengl)

I guess you've herad this before, but please bear with me.

I'm doing some opengl programming and've made this class:

Code:

struct Color 
{ 
   Color() {} 
   Color(float r_, float g_, float b_) : r(r_), g(g_), b(b_) {} 
   void Set(float r_, float g_, float b_); 
   void Invert(); 
   static Color Invert(Color& color); 
   void AdjustBrightness(float adjustment);   // in percent e.g. (1.3 - 0.3) 
   float r, g, b, a; 
    
   static Color GetPredefined(int color); 
   void SetToPredefined(int color); 
   enum 
   { 
      Red, 
      Green, 
      Blue, 
      Yellow, 
      Oranage, 
      Brown, 
      White, 
      Black 
   }; 
   static Color PredefinedColors[]; 
   void operator=(int predefined_color); 
   bool operator==(Color& c); 
};

Can I safely do this?

Code:

Color a; 
glColor4fv(&a.r); //expects an 4 sized GLfloat array with r,g,b,a

If I can, can I do this on more complex classes too?

Thanks!