Classes + headers

[kargo]

Hi I have a problem, Im trying to compile application on unix. Im using g++.

Do I have to set some special options or what? Because whenever Im trying to put class functions in *.cpp It doesnt see it. "undefined reference to ..". But if I define function in *.h file It does see it.

A.Hello();

class A {
    public :
      void Hello(); // "undefined reference" even If i have defined it in *.cpp file
};

class A {
    public :
      void Hello(){
          printf("ok"); //Its ok..
      };
};

[tabstop]

You have to compile all of your .cpp files together, or at the very least link all of your .o files together.

[manasij7479]

^^ for example:

g++ main.cpp otherfile.cpp -o main

...where main.cpp should #include the other header file.