Not explicit in the title is “efficiently on a modern CPU”. They tend to be 1 to 4 opcodes each. I think the list might serve as a jumping off point if you are

Not explicit in the title is “efficiently on a modern CPU”. They tend to be 1 to 4 opcodes each. I think the list might serve as a jumping off point if you are looking at an algorithm which depends on an integer permutation and want to consider how it would change if you used a different permutation. And missing from the list—the identity function! Very fast to compute and universally (not)implemented on all CPUs.