gcc3.2.3 exception handling : impacted by gcc optimizaton level?

gcc3.2.3 exception handling : impacted by gcc optimizaton level?

[lin q]

Hi,
  I am using gcc3.2.3 on Red Hat Linux. I just find a strange thing of 
exception handling:if I compile the code in debug level, then the exception 
can be caught; if I compile it in optimized level , then the exception can 
not be caught.

  The compile option for debug is
           -c -DUNIX -fexceptions -g3 -DDEBUG -DLIN

  The compile option for optimize is
            -c -DUNIX -fexceptions -O3 -DNDEBUG -DLIN

  Basically here is the code,

====== On the Top =====================
  try{
     ... some function calls ...
  }
  catch (...){
      printf("Caught...\n");
      return 1;
  }


====== Deep in the code ================
if (...some condition...){
   printf("To throw...\n");
   throw 1;
}

When I run in debug mode, I can see
To throw...
Caught...

But in optimized mode, I can only see
To throw...
Aborted.
then software crashes.

Is this a known problem?

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Re: gcc3.2.3 exception handling : impacted by gcc optimizaton level?

[Eljay Love-Jensen]

Hi lin q,

Try these flags:
-c -DUNIX -fexceptions -g3 -O3 -DDEBUG -DLIN

GCC can optimize & have debug code.

HTH,
--Eljay