/*
   +-------------+---------+-----------------------+
   | John Breaux | jab0910 | JohnBreaux@my.unt.edu |
   +-------------+---------+-----------------------+
   |                  2022-04-03                   |
   +-----------------------------------------------+
*/
struct block {
   block *prev;
   block *next;
   // data goes here
   int data;
};

struct list {
   block *start;
   block *end;
   int length;
};

// list operations:
//   list_unlink: unlinks the last block in the list, and returns a pointer to it
block* list_unlink (list* l, bool lastblock=0);
//   list_link:   links the block b onto the end of the list
void   list_link   (list *l, block *b);
//   list_init:   links an array of blocks onto the end of a list
void   list_init   (list *l, block *m, int size);
//   list_print:  prints a list
void   list_print(list *l, bool verbose = false);