-- card: 43696 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 4755
-- name: 


-- part contents for background part 4
----- text -----
CONSTRUCTORS & DESTRUCTORS

As demonstrated above, it is customary to provide an init() method for initializing TC objects immediately after allocation.  (C++ provides a feature to automate initialization, which is not available in TC.)  The init() method may itself perform additional allocation as dictated by the programmer.

It is also customary to send a destroy() message to the object immediately before deallocating the object.  The destroy() method should deallocate any space allocated by the init() method.  (Again, C++ provides for "destructors" which are automatically called when the object is deallocated.)

The space pointed to by an object pointer is deallocated in TC using the delete() function, while C++ provides the 'delete' operator for this purpose.  It simply deallocates the object pointed to by its argument.

    jack->destroy();       /* C++ provides automated "destructors" */
    delete(jack);             /* in C++ parentheses are not needed */



-- part contents for background part 7
----- text -----
119