🚀 go-pugleaf

In article <45u1ta$8ot@cnn.exu.ericsson.se>, Paul Stephenson <paul.stephenson@ebu.ericsson.se> writes:
> siv_941268@debet.nhh.no (ROLAND KAUFMANN) wrote:
>>Any kind of exception is caught in this clause. It is the
>>exception-equivalent of the 'else' statement.
> 
> 
> Yes, I realize that.  I'm asking a question about the behavior of the 
> runtime system.  It appears to throw an exception upon an access 
> violation.  If I know the type of that exception, I can write a separate 
> handler to catch it rather than relying on the "catch any" handler.

You'll have to write a system exception handler that'll throw a C++
exception, and then test whether that exception is the exception you're
looking for.

#include <eh.h>
#include <windows.h>
#include <stdio.h>

class XAccessViolation { };

void _se_trans_func( unsigned int i, struct _EXCEPTION_POINTERS* )
{
   if( i == EXCEPTION_ACCESS_VIOLATION )
   {
      XAccessViolation x;
      throw x;
   }
   else
      throw i;   // just to make sure something's thrown!
}

void main( void )
{
   _set_se_translator( &_se_trans_func );
   try 
   {A
      unsigned char *puch = 0;
      *puch = '\n';
   }
   catch( XAccessViolation x )
   {
          printf( "An access violation occurred\n" );
   }                                                          
   catch( ... )
   {
      printf( "An unknown exception occurred\n" );
   }
}