Lecture Notes for April 24

Read for Today

• Sections 7.7.

Topics to Cover Today

• Pointers
  • models: reference model versus value model
  • tagged pointers (cf. "The Ruby VALUE")
  • dangling reference, memory leak
• Garbage collection
  • mark-sweep: tagging memory, recursive mark, iterative mark, free list
  • stop-and-copy: fight fragmentation, generational, conservative