Week8
Class 1 - Tues March 24
Announcements:
  Syllabus reposted; hw2 will be posted tonight or soon, and will be done partially in class  
  Default grade conversion on canvas corrected
  Grammar today is:
      A12.3 Macro Definition and Expansion, p229-231 hardcopy K&R, p207-209 softcopy
      A8.9 Typedef, p221 hardcopy K&R, p199 softcopy
Lecture is: Hamming code
      Hamming code will be needed for proj3 
Grammar Page is: NonSolution Code from page 442 in Tanenbaum and Bos 
  1. Put name and date on top of the printed page 
  2. Read the four pages from Tanenbaum and Bos on the website: pp441-444.
  3. Read the three pages from K&R for A12.3 (pages given above for hardcopy and softcopy)
Answer these 4 Questions on the back:
  4. Explain the define: #define N 5
  5. Explain the lines of code where N appears
  6. Explain the line of code in Solution (Fig 6-5) that is: typedef int semaphore;
  7. Why are the two lines of take_fork reduced to one line of take_forks in Solution (page 443)
  8. Why does the Solution (Fig 6-5) need s[N] + 1 semaphores?