Lab 1

1. Setup (2 mins)

  1. Labs are a co-operative time! Introduce yourself to someone!
    • You can work individually or in pairs (pair-programming).
    • Help others!
  2. Use either your own laptop or the lab PC.
  3. Only if using CSIL lab PC:
    • [Only CSIL PC] If in Windows, reboot to Linux.
      • While booting, select Ubuntu from boot menu.
    • [Only CSIL PC] Don't setup GitHub tokens in container because it may be shared with other users.
    • [Only CSIL PC] Delete any possible previous docker container:
      docker rm cmpt201
  4. Launch the docker container.
  5. You do not need to use record.


2. Design (10 mins)

Your task is:

Write a program that receives a user input, tokenizes it with the delimiter " " (space), and prints out each token one at a time on a new line. Use getline() for user input and strtok_r() for tokenization.

Example output:

Please enter some text: Tomorrow is Friday.
Tokens:
Tomorrow
is
Friday.
  1. Design your solution.
    • Don't Google it; you need these skills. Labs are for figuring it out, not for completing work.
    • Use man pages for gitline() and strtok_r().
    • Discuss to your partner, or someone else, how each of these functions works.
    • Note that strtok_r() uses a ** (a pointer to a pointer).
      • Think why it uses a pointer to a pointer.
      • Think what you'll need to pass in, and what will it give you back.
      • Try drawing a picture.
    • Suggestion: use pseudo code to plan your code.


3. Implement it! (20 mins)

  • Write a couple lines of code then compile, run, debug. Repeat!
  • Do simplest thing first (hint "Hello world!"). Then add functionality bit-by-bit.


4. Reviewing (10 mins)

  • During the last 10 minutes, TAs will show a sample solution.
  • TAs will talk through how the solution works and discuss its implementation.

Nothing is submitted for this lab. Thank you for learning!

If you were working on a CSIL machine, delete your docker container:
docker rm cmpt201