Exception_Access_Violation

[mhamel_98@yahoo.com]

Looking for some pointers (!!!) here.  I'm getting the above
program_error message when trying to free some pointers.  The context
is a double linked list which uses a storage manager to allocate
chunks of nodes at a time.  I have an option on Clear to either keep
the pool intact for later use, or to deallocate when desired.  When
deallocating, I'm using an instantiated unchecked_deallocation, it
gets part way through the list, then pops out the program error.  The
pointers are being checked for nullness and I've looked at the
addresses and the look "ok".  Any tips on what else to look for?