- 1. Purely Functional Data Structures Demystied Mohit Thatte
Functional Conf 2014, Bangalore
- 2. About Me Work The great outdoors @mohitthatte
github.com/pastafari
- 3. Why? What? Learnings
- 4. Image: User:Matthew,Wikimedia Commons
- 5. Programs that use Maps Towers of Abstraction Map as ADT Map
implementation Primitives
- 6. Image: https://www.ickr.com/photos/cverdier/4321365261
- 7. Any sufciently advanced data structure is indistinguishable
from magic With apologies to Arthur C. Clarke!
- 8. Why? What? Learnings
- 9. Data Structures
- 10. AbstractionsData
- 11. Abstract Data Type Invariants Stack push, pop LIFO Name
Operations ADT
- 12. Image: Apollo 8,NASA
- 13. Change perspective Think like a data structure
designer
- 14. The ADT Challenge Given an ADT, give a correct
implementation of all operations.
- 15. Source:
https://www.ickr.com/photos/manicstreetpreacher/5310984196/
- 16. You can program in any language you want as long as it is
imperative
- 17. make it easier to reason about code Why Functional?
Immutability Persistence
- 18. x = 5 y = x + 1 pr!nt x x = [1,2] y = x
