Re: problem with String create: setC:

[Rick Riolo]

Marcus,
But it does work---by that I mean it does not crash in
the way he described.  (It may not be a functioning String 
object....I don't know.)

But the case he gave that *doesn't* work also doesn't 
work if its after initSwarm().
I just tried this program (under swarm-1.3):

#import <simtoolsgui/GUISwarm.h>
#import <simtoolsgui.h>

int main (int argc, const char ** argv) {
  id key;
  char *keystr = "a string";

  fprintf(stderr,"about to do [String create: scratchZone] BEFORE 
initSwarm...");
  key =  [String create: scratchZone];
  [key setC: keystr];
  fprintf(stderr,"...done.\n");

  initSwarm(argc, argv);

  fprintf(stderr,"about to do [String create: scratchZone]...");
  key =  [String create: scratchZone];
  [key setC: keystr];
  fprintf(stderr,"...done.\n");

  fprintf(stderr,"about to do...[String create: globalZone setC: keystr]");
  key =  [String create: globalZone setC: keystr];
  fprintf(stderr,"...done.\n");

  fprintf(stderr,"about to do...[String create: scratchZone setC: keystr]");
  key =  [String create: scratchZone setC: keystr];
  fprintf(stderr,"...done.\n");

  return 0;
}

Here is the output on running it:

badger-rlr)stest
about to do [String create: scratchZone] BEFORE initSwarm......done.
about to do [String create: scratchZone]......done.
about to do...[String create: globalZone setC: keystr]...done.
about to do...[String create: scratchZone setC: keystr]error: 
ComponentZone_c (instance)
ComponentZone_c does not recognize allocBlock:
IOT trap (core dumped)
badger-rlr)

Note that it crashes in the same way if one takes out the
lines before the initSwarm, as well. Here is output after I 
#ifdef-ed those first lines out:

badger-rlr)stest
about to do [String create: scratchZone]......done.
about to do...[String create: globalZone setC: keystr]...done.
about to do...[String create: scratchZone setC: keystr]error: 
ComponentZone_c (instance)
ComponentZone_c does not recognize allocBlock:
IOT trap (core dumped)

It also fails if I just do an initSwarm and the +create:setC:
with scratchZone as the only thing in the program:

badger-rlr)stest
about to do...[String create: scratchZone setC: keystr]error: 
ComponentZone_c (instance)
ComponentZone_c does not recognize allocBlock:
IOT trap (core dumped)
badger-rlr)

There does seem to be some difference between scratchZone
and globalZone, and scratchZone seems to be the one that makes
String+create:setC: fail when it shouldn't (at least according
to the String man page).

- r

Rick Riolo                           address@hidden
Program for Study of Complex Systems (PSCS)
4477 Randall Lab                
University of Michigan         Ann Arbor MI 48109-1120
Phone: 734 763 3323                  Fax: 734 763 9267
http://www.pscs.umich.edu/PEOPLE/rlr-home.html

On 9 Oct 1998, Marcus G. Daniels wrote:

> Date: 09 Oct 1998 14:30:30 -0700
> From: Marcus G. Daniels <address@hidden>
> To: address@hidden
> Subject: Re: problem with String create: setC:
> 
> >>>>> "SB" == Steve Brophy <address@hidden> writes:
> 
> SB> This test program works:
> 
> #import <simtools.h>
> int
> main (int argc, const char **argv)
> {
>       id key;
>       key = [String create: globalZone setC: "testing"];
> }
> 
> But it shouldn't:  you need to run initSwarm before anything else.
> 
> 
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