Re: Porting Rogue Wave Program From Solaris to Linux

From:
"Alf P. Steinbach" <alfps@start.no>
Newsgroups:
comp.lang.c++
Date:
Fri, 15 Aug 2008 19:49:50 +0200
Message-ID:
<GYmdneMsOvYiXDjVnZ2dnUVZ_ovinZ2d@posted.comnet>
* Steven Backus:

I inherited a Solaris c++ program that uses Rogue Wave and am trying to
port it to linux. It seg faults in this code:

  for (int size = entries() - 1; size > 1; --size)
  {
    RWOrderedIterator vectofclusts_iter(*((RWOrdered*) at(size)));
    CCluster* pc;
    while ((pc = (CCluster*) vectofclusts_iter()) != NIL)
      pc->writeChartTo(fout);
  }
}

Unfortunately I don't know much about c++ or rogue wave. Can
anyone give me some hints about debugging this?


Haven't ever used RW, but hey, you have two C casts in there.

They're wrong by definition, almost.

I'm guessing that RW collections were collections of void* or some such, yes?

That's the most probable cause of your problem, a wrongful pointer cast.

And what is this "NIL"?

One may hope the author of that code has now been forced (by Russia? some Power
with common sense, anyway) to make a living by cleaning up other's crappy code.

Cheers, & hth.,

- Alf

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