On first look (not that I'm able to give any opinions about any CLD review)
Using a enum instead of string as a queue data type would lessen the risk of making a typo error when your programming, and makes the programming a bit faster 🙂 it would also "lessen" the traffic since enum is a lesser datatype than string, and combining it with a typedef would keep changes up to date 😛
Im taking the CLAD tomorrow, and am hopefully ready for the CLD right after that 😛 Hope it wont be difficult. Good luck!
