While this is a common idiom, I do think it is bad from a maintainability standpoint. Let’s say in the future you need to change make a change, and the value of

While this is a common idiom, I do think it is bad from a maintainability standpoint. Let’s say in the future you need to change make a change, and the value of a becomes the elemental sum of the vectors b and c. a = b[i++] + c[i++] Errors like this are more avoidable by avoiding this sort of syntactical compression. a = b[i] + c[i] i += 1