Re: [Dev-C++] undefined reference to ...

[Michal M. <mi...@mo...>]

Philippe Parent wrote:

> class foo {
> private:
>   static foo* m_instance;
     ^^^^^^^^^^^^^^^^^^^^^^^
this is only declaration, you have to define it also somewhere, e.g.:

class foo {
    static foo* m_instance;  // declaration
};
foo* foo::m_instance = 0;   // definition