Dynamic memory allocation

• new
• delete
• need to maintain at least one reference (e.g. pointer) to dynamically allocated memory
• lack of any reference to dynamically allocated memory is known as a memory leak
• data member(s) are typically used to link dynamically allocated memory to an object
• dynamically allocated member is typically located outside the object
• not automatically "cleaned up"
• generally a good idea to initialize pointers in the constructor.
• destructor commonly deallocates dynamically created memory.
• destructor is the last function that runs for an object
• Common steps for a dynamically allocated and resizeable array:
1. new - create new array of desired size
2. copy - copy old contents into new array
3. delete - deallocate old array
4. adjust pointers - assign array pointer to newly allocated array
• dlist (example)

Additional Notes

• new
• Can a call to new ever fail?
• Today counts as a participation grade (2pts)