In <951024.195404z.11077.das@lanai.cs.ucla.edu> David A Smallberg <das@CS.UCLA.EDU> writes:

>Although I know what some implementations do, I can't determine from
>the Working Paper what should happen in this case:

> int n = 0;

> struct X {
>  ~X() { exit(++n); }
> };

> X a;
> X b;
> int main()
> {
>  exit(n);
> }

>Does the destructor for "a" get called?  Is the exit status 0, 1, or 2?
>On the implementations I have tried, the dtor for "b" (but not "a")
>gets called, and the exit status is 1.  I see nothing in the WP that
>says that the dtor for "a" must not be called (or must be called, for that
>matter).

>Any pointers?

The C++ Working paper only specifies "additional" behaviour for exit() - it
refers to ISO C exit() for basic behaviour, and the ISO C standard
states

 "if more than one call to exit() is executed by a program,
  the result is undefined".

I'd have to say you're living on the edge.

-simon tooke

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