| [2] | 1 | Here are my comments on the programming assignments and the last two
|
|---|
| 2 | homework assignments.
|
|---|
| 3 |
|
|---|
| 4 | Greetings,
|
|---|
| 5 |
|
|---|
| 6 | Thijs <thijsvanommen@gmail.com>
|
|---|
| 7 |
|
|---|
| 8 | Java, first part:
|
|---|
| 9 | - release_writelock() in ReadProcess should be release_readlock()
|
|---|
| 10 | - && in get_writelock() should be ||
|
|---|
| 11 | - writer does only a simple notify() when releasing its lock, while
|
|---|
| 12 | there might be many readers waiting that could go in at the same time
|
|---|
| 13 | Java, second part:
|
|---|
| 14 | - writerequest should be an int, not a boolean, as there can be many
|
|---|
| 15 | writers waiting to get a lock (you identified this problem in your
|
|---|
| 16 | report)
|
|---|
| 17 | - both notify()'s should now be notifyAll()'s: currently, a if either
|
|---|
| 18 | notify() happens to wake up a reader while a writer is also waiting
|
|---|
| 19 | for a lock, your program freezes
|
|---|
| 20 |
|
|---|
| 21 | Prolog, part 1c:
|
|---|
| 22 | - your paths don't include the first and last points, which do belong to
|
|---|
| 23 | it
|
|---|
| 24 | - path(a,c,[[a,b],[b,c],[c,b]],[b,c,b]) is satisfied, but the path
|
|---|
| 25 | clearly isn't semi-acyclic
|
|---|
| 26 | Prolog, part 2:
|
|---|
| 27 | - comparisons should be strict
|
|---|
| 28 | - "min/max" constants limit functionality
|
|---|
| 29 |
|
|---|
| 30 | Scheme: GRADE 7,5
|
|---|
| 31 | - late
|
|---|
| 32 | - you don't relate the difference in programs to a possible difference
|
|---|
| 33 | in paradigms
|
|---|
| 34 | - substitute doesn't handle the empty list as its first parameter
|
|---|
| 35 | - while you treat the strings recursively, they don't fully reflect
|
|---|
| 36 | the nature of recursive lists, being stored linearly
|
|---|
