This has nothing to do with what I'm saying. You obviously write code without thinking about people reading it later. It doesn't matter if the reader knows a[i+

This has nothing to do with what I'm saying. You obviously write code without thinking about people reading it later. It doesn't matter if the reader knows a[i++] and a[++i]. What matters is that you can easily make a mistake here, and the reader can easily not see the mistake or misunderstand what you meant to write. Compactness is the enemy of clairity.