Comments on: Useful hints: #1 – Odd/Even numbers (Modulo operator [%] and Bitwise And [&]) http://www.eoingriffin.com/code-hints/useful-hints-1-oddeven-numbers-modulo-operator/ Web/Multimedia Design & Development Portfolio Mon, 14 Mar 2011 08:28:15 +0000 hourly 1 By: Eoin http://www.eoingriffin.com/code-hints/useful-hints-1-oddeven-numbers-modulo-operator/comment-page-1/#comment-60 Eoin Mon, 14 Mar 2011 08:28:15 +0000 http://www.eoingriffin.com/?p=212#comment-60 That doesn't seem to be the case for modulo and bitwise &. If you run a speed test, you'll find that modulo is significantly slower than the bitwise &. You could be right about the the >> and / 2 though. They seem to perform very similarly. That doesn’t seem to be the case for modulo and bitwise &. If you run a speed test, you’ll find that modulo is significantly slower than the bitwise &.
You could be right about the the >> and / 2 though. They seem to perform very similarly.

]]> By: PeWu http://www.eoingriffin.com/code-hints/useful-hints-1-oddeven-numbers-modulo-operator/comment-page-1/#comment-37 PeWu Sat, 04 Sep 2010 21:39:25 +0000 http://www.eoingriffin.com/?p=212#comment-37 The compiler will usually optimize (among others) <i>modulo 2</i> and </i>divide by 2</i>, so you can safely write what you mean in your code instead of making the code unreadable. So it's actually better to write <b>x/2</b> instead of <b>x >> 1</b> and <b>x%2</b> instead of <b>x&1</b>. The compiler will usually optimize (among others) modulo 2 and divide by 2, so you can safely write what you mean in your code instead of making the code unreadable.

So it’s actually better to write x/2 instead of x >> 1 and x%2 instead of x&1.

]]>