On: Why is this C++ code faster than my hand-written a...

[santaclaus]

I remember seeing a blog post from Andrei Alexandrescu that I can't seem to dig up, but this SO post seems to be a nice summary [1]. In short, in 99.9999999% of usages post increment is probably better.

[1] https://stackoverflow.com/a/38947878

[mark-r → santaclaus]

Thanks. I guess I'm applying this rule only when the result of the increment isn't being used directly, so there is no dependency on the operation. When the result is used, the semantic difference between ++x and x++ obviously determines the choice.