crash after delete snmpx

[Jochen Katz]

Hi,

> I have a class for SNMP agent derived from our own thread class. In the
> constructor of this class, I initialize the snmp session object to 0, and
> from my code I call the initialize() to create the snmp session. If
> everything goes fine, it works fine. Suppose the SNMP session could not be
> created, say due to bind failure. As I have allocated the snmp session
> object, I want to free the memory using delete operator for that object
> pointer. At this point the application crashes. I use winNT4.0 and VC++ 6.0.

> When I tried to debug it, I found that the memory content for the session
> object changes when it enters the destructor of Snmp class. In the ~snmp(),
> since the construct_status is not SNMP_CLASS_SUCCESS, it returns without
> doing clean up.

This is ok, as nothing has to be done. And doing nothing in a
destructor should not lead to a crash.

> As soon as it returns it crashes. I could not get much help
> why it's happening.

So a printf right after the delete isn't executed?

Best regards,
  Jochen