staticforward and C++

[Greg Ewing]

Pete Shinners quoth:
> 
> Therefore, the forward
> declaration should use the 'forwardstatic' keyword.  This expands to
> static on most systems, but to extern on a few.

>From a brief experiment, it appears that g++ complains
about it either way!

However, I found that the following *does* work:

  struct Foo {
    int x;
  };  

  void f() {
    extern Foo foo;
    foo.x = 42;
  }

  static Foo foo;

In other words, declare the struct as extern *inside*
each function which needs to use it, and then define
it as static later.

This is rather a nuisance, though. It appears that
there is no way to forward-declare a static variable
outside of a function in C++. Does anyone know if this
is what the language spec really requires, or is it
just an oversight on the part of g++?

-- 
Greg Ewing, Computer Science Dept, University of Canterbury,	  
Christchurch, New Zealand
To get my email address, please visit my web page:	  
http://www.cosc.canterbury.ac.nz/~greg