exception handling (egsc-1.0.3, linux)

[Thomas Binder <binder at iue dot tuwien dot ac dot at>]

Hallo !

I found a strange behaviour in the exception-handling of egcs-1.0.3.

It seems that an exception cannot be caught if it is thrown in a function
which is called via a function pointer. The program terminates with the
message 

	IOT trap/Abort

just as if the exception had not been caught at all.

The attached program fragment was compiled with the following command:

	g++ bug.cc -o bug

Note that this doesn't happen with the OSF version of the compiler 
(same release).


regards,
T.Binder
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| Thomas Binder                  |                                             |
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#include <iostream.h>

void f1 ();
void f2 (void (*ff)());
	
class ERR {};

int main ()

{	try	{ f1 (); }	// Working ...

	catch (ERR)
	{	cout << "Caught ERR" << endl;
	}	

	
	try	{ f2 (f1); }	// Not working ...
	
	catch (ERR)
	{	cout << "Caught ERR" << endl;
	}
}

void f1 ()
	
{	throw ERR ();
}

void f2 (void (*ff)())
	
{	(*ff) ();
}