Re: g++ bug

[Thomas Maeder]

"matrut" <matrut@gmail.com> writes:

> class CSignal
> {
> public:
>     CSignal(void)
>   {
>          m_this = this;
>   };
>
>     ~CSignal(void);
>
> protected:
>       static CSignal *m_this;
> }:

Syntax error. Please next time post real code.


> and after linking the output is af follows:
>
> : undefined reference to `CService::m_this'
>
> The code works on Visual Studio C++ and what's the matter about g++?

The matter is that g++ is correct and Visual Studio C++ isn't.


The line

static CSignal *m_this;

declares m_this, but doesn't define it. You have to add a definition
of that variable to your program.


> What's the sollution?

Fix your code.