How EGCS with multi-threaded compliance?

[David Lucas]

Just an observastion, but some compilers do not even guarentee that
init_lock will be initialized before the use of f_initialize_a, thus a
possible uninitialized Mutex object.
I would suggest even making the Mutex heap based and maybe use a double
lock pattern of some sort.   It can get real tricky in static space. 
;-)

> static Mutex init_lock;
> inline A& f_initialize_a()
> {
>   static A *a = 0;
>   if (!a) {
>     Lock lock(init_lock); // released when lock goes out of scope
>     if (!a)
>       a = new A();
>   }
>   return *a;
> }
> 
> void f() {
>   A& a = f_initialize_a();
> }

Later,
Dave


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David Lucas                    |  mailto:dlucas@checkfree.com
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