When Should I Use Pre-Increment vs. Post-Increment in C/C++?

The rule is kind of simple: use post-increment when you need it, but default to pre-increment otherwise. A quick tip is to avoid just using one or the other without thinking about your specific scenario.

I typically go with pre-increment whenever possible; it tends to simplify behavior. Just focus on clear code, and then deal with performance only if it becomes an issue.

A good mindset is to prioritize clarity in your code. Stick to writing what makes sense and is easier to maintain. For me, I mostly use post-increment in loops. I find it clearer for the integers I usually deal with. If you use pre-increment, do it for simple cases, and don’t worry too much about the minor performance hits unless you’re facing bottlenecks.

Honestly, if you aren't depending on the result of the increment, both are pretty much the same. The performance differences are so negligible; we're talking nanoseconds here! Even with custom iterators, unless you're doing something wild, it usually won’t make a noticeable difference. So, just pick whatever feels right for your code.

In C++, I lean towards using `++i` because it could potentially be faster and never slower! If the performance matters, just keep it simple and use the one that fits your logic best.