Article View: comp.std.c++
Article #2302Re: Calling exit() from the dtor of a static object
From: Simon Tooke
Date: Wed, 25 Oct 1995 17:33
Date: Wed, 25 Oct 1995 17:33
51 lines
1919 bytes
1919 bytes
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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Path: arc1-ca.pugleaf.net!128.32.155.1!matt From: simon@sco.COM (Simon Tooke) Newsgroups: comp.std.c++ Subject: Re: Calling exit() from the dtor of a static object Date: 25 Oct 1995 17:33:50 GMT Organization: SCO Canada, Inc. Approved: matt@physics2.Berkeley.EDU (Matt Austern) Message-ID: <DH0CBG.GJD@sco.COM> References: <951024.195404z.11077.das@lanai.cs.ucla.edu> NNTP-Posting-Host: physics2.berkeley.edu