Expert, i have a question on static.
The partial code is as following:

[quote]
// in a class Object
...
private:
typedef void (Object::*Omf) ();
static Omf farray[3];
...
[/quote]

Here i can't understand why "static" is a must?
I have tried to remove "static" but then i get compilation error message:

menu1.cpp:17: 'void (Object::* Object::farray[3]()' is not a static member of 'class Object'

Here static seems not a lifetime issue. Thanks for you enlightenmen.

Thanks, VeryGood. The compiler really complains about non-static member functions as shown in error message.

My followon question is that: in a class defintion, there are acutally many non-static member function. Here the member function is private, does it matter? Is it possible to define a non-static private member function?

TIA

I agree with your first point. It is really just aliasing. I had mis-used some words such as static functions. It is not private function. farray is a pointer to array of functions. farray is a private member of class Object.
So the problem is that the keyword static is not allowed to be omitted, otherwise compiler complains as shown in the error message
[quote]
menu1.cpp:17: 'void (Object::* Object::farray[3]()' is not a static member of 'class Object'
[/quote]
So you see the problem?

And i use g++ menu1.cpp -o menu1 command line compiled.

Flying, i investigate it again. I think the problem may caused by the initialization of farray.

In the public part, i defined some public functions, and i initialize the farray with these public functions.

Class Object
{
public:
void retrieve() {...}
void insert() {...}
void update() {...}

private:
typedef void (Object::*Omf)();
Omf farray[3];
};

Object::Omf Object::farray[3]=
{
&Object::retrieve, &Object::insert, &Object::update
};

&Object::retrieve and such are fixed addresses, so farray must be defined as static, correct? Is this a rule defining a static member?
What are the rules for definition of static members?

TIA

But i have not fully understood the explanation yet. And Can someone summary size the use of static?

this question.
Thanks again.