Structures |
Stack principle
NOTE: Each of the big blocks is a struct (or class) that has
a pointer to another one. Remember that the pointer only |
stores the memory location of something, it is not that |
thing, so the arrow goes to the next one. At the end, there |
is nothing for the pointer to point to, so it does not point to |
anything, it should be set to "NULL" to prevent it from |
accidentally pointing to a totally arbitrary and random |
location in memory (which is very bad). |