Are long variable names a waste of memory?

Question

If I have an variable int d; // some comment. Will that be better than int daysElapsedSinceBlahBlahBlahBlah with no comment. It is more reabale, but will it waste memory?

Answer 1

You marked this as language-agnostic but the example corresponds to C-languages family. In C-like languages the name of the variable shouldn't waste memory, it's just a label for the compiler. In the resulting binary code it will be replaced by a memory address.

In general, there is no benefit in storing the name of variable inside resulting binary, the only usages I can think of is some extreme debug, reverse-engineering or some weird form of reflection. None of these are normal use-cases.