C++ exception handling : impacted by gcc optimizaton level?

[linq936]

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?

 

[Kai-Uwe Bux]

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.
[snip]
Is this a known problem?

Maybe, who knows? Wait, maybe those folks over there at the gcc mailing
lists know. After all that's very much on topic *there*.


Best

Kai-Uwe Bux