Variable Videos for CS 3520/6520

• Variable 1 — assignment (3:27)

  PLAI§8.2. Considering mutable variables and assignment again, instead of and in contrast to mutable boxes.

• Variable 2 — store (3:48)

  Examples of interpreting with mutable variables and an explicit store.

• Variable 3 — interp (3:30)

  Implementing interp for Curly with mutable variables. See variable.rkt.

• Variable 4 — variables as boxes (5:41)

  On the expressiveness of variables and boxes — they’re the same — and encoding boxes with variables.

• Variable 5 — call by reference (4:16)

  On implementing call-by-reference, which is generally a bad idea.