[Dev-C++] problems to overload operator << and >>

[Andrei R. T. <and...@gm...>]

hello list,

I am trying to overload the  operators << and >> to save and read a 
class I am coding, called Preenchimento, but I am having some problems. 
When I try to compile the file, I get these errors:

in file included from preenchimento.cpp:15:
preenchimento.h:33: error: expected constructor, destructor, or type 
conversion before '&' token
preenchimento.h:33: error: expected `,' or `;' before '&' token

preenchimento.h:34: error: expected constructor, destructor, or type 
conversion before '&' token
preenchimento.h:34: error: expected `,' or `;' before '&' token

preenchimento.cpp:61: error: expected constructor, destructor, or type 
conversion before '&' token
preenchimento.cpp:61: error: expected `,' or `;' before '&' token
preenchimento.cpp:71: error: expected constructor, destructor, or type 
conversion before '&' token
preenchimento.cpp:71: error: expected `,' or `;' before '&' token


the code from preenchimento.h

class Preenchimento
{
    public:
        unsigned char red, green, blue;
        unsigned int alpha;
       
      public:
            Preenchimento();
            Preenchimento(unsigned int r, unsigned int g, unsigned int 
b, unsigned int a);
            
            ~Preenchimento();
            
            int CriaPreenchimento(unsigned int r, unsigned int g, 
unsigned int b, unsigned int a);
            
            void ativa();

            const Preenchimento& operator=(const Preenchimento&);  
};

istream& operator >>(istream&, Preenchimento&);
ostream& operator <<(ostream&, const Preenchimento&);


the header of preenchimento.cpp

#include <windows.h>
#include <gl/gl.h>
#include <iostream>
#include "preenchimento.h"

Preenchimento::Preenchimento()
{
    red = green = blue = 0;
    alpha = 0;
}


thank you for your time,
andrei

-- 
RGB Design Digital
www.rgbdesigndigital.com.br

an...@rg... / (51) 92067436