Freezing after Windows 10 Update

[Bogdan]

Hello. After Windows 10 April Update (build 1803) I have problem with loading files (ScanSymbol stuck in infinite loop).
In previous windows version all was ok.
I use CLIPS core verion 6.30.
Is it Microsoft bug and I need only wait or do something?

[Gary Riley]

Difficult to say based on the information you've provided. Can you provide an example for reproducing the problem?

[Bogdan]

Yes, of course.
Firstly I call InitializeEnvironment();
then try to load simple file

(defclass USER-EX
(is-a USER)
(role abstract)
(pattern-match non-reactive)
(slot object-name (type STRING) (access read-write) (create-accessor read) (visibility public))
(slot object-address (type EXTERNAL-ADDRESS) (access read-write) (create-accessor read) (visibility public)))
(defmessage-handler USER-EX first-init primary ())

when call Load(@my file@) from cstrcpsr.c
there is problem start, the stack is
LoadConstructsFromLogicalName ->
ParseConstruct->
...
-> SlotReferenceVar
-> GetToken(theEnv,"hnd-var",&itkn);
-> ScanSymbol
and there in while loop variable "inchar" become always "-1"

[Gary Riley]

Works fine for me running with Windows 10. I set the ALLOW_ENVIRONMENT_GLOBALS flag in setup.h to 1 and then changed the main function to the following:

int main(
  int argc,
  char *argv[])
  {
   DATA_OBJECT rv;

   InitializeEnvironment();
   Load("code.clp");
   Eval("(ppdefclass USER-EX)",&rv);
   Eval("(ppdefmessage-handler USER-EX first-init)",&rv);
   return(-1);
  }

The defclass and defmessage-handler were both loaded successfully.

[Bogdan]

The problem is using CLIPS in plugin for Allplan program. If we use it whithout this program all really fine.
Thanks a lot and sory for contacting.