That’s the main issue with premature optimization: do it the “optimized” way and it may still be inefficient, or do it the obvious way and let the compiler turn it into its most optimized form. (Of course, not the case with all languages, but most mainstream compilers optimize the code to a decent extent.)
That’s what I was thinking too… Although, I wouldn’t be surprised if most languages convert modulo 2 to this automatically.
That could also be the case.
That’s the main issue with premature optimization: do it the “optimized” way and it may still be inefficient, or do it the obvious way and let the compiler turn it into its most optimized form. (Of course, not the case with all languages, but most mainstream compilers optimize the code to a decent extent.)