Many. You also expect me to remember how to spell INET_NTOA and on what fields to use it on. What if I wanted do a quick "SELECT * FROM"? I barely know how to spell English words what makes you think I'm going to remember how to spell INET_NTOA.
I realize you’re describing a general problem and not just this particular example, but fwiw NTOA and friends got a lot easier for me once I learned enough that I stopped trying to “remember how to spell” them and started thinking about them in terms of the underlying concepts, like “Network (as in big-endianness) to ASCII”. Learning the significance of the term “address family” was a big clue for me for self-directed learning in this space :)
