http://thinkingeek.com/2009/10/12/c-the-and-operators-and-lazy-evaluation/ In geek we trust Mon, 30 Apr 2012 23:12:26 +0000 hourly 1 http://wordpress.org/?v=3.3.2 http://thinkingeek.com/2009/10/12/c-the-and-operators-and-lazy-evaluation/#comment-152 Vicne Sun, 19 Jun 2011 10:22:55 +0000 http://thinkingeek.com/?p=121#comment-152 I think your workmate should really learn the meaning of bitwise operations. The fact that C# knows both & and && is nothing "Curious". It's been so for ages in C, C++, Java and other languages. These are two basically different operators, one is arithmetic and works on numbers seen in their binary form, while the other one is a conditional operator working in boolean values. The fact that the single & also works with boolean types is just a side-effect because booleans can be considered numbers with just one binary digit (btw, in C, the language has no "boolean" predefined data type so it is often defined as a synonym of int by a macro). So I really think the conclusion is that your workmate should stop using & for && and reserve the single & for binary calculations. The same is true for | vs || by the way. Best regards, Vicne I think your workmate should really learn the meaning of bitwise operations.
The fact that C# knows both & and && is nothing “Curious”. It’s been so for ages in C, C++, Java and other languages. These are two basically different operators, one is arithmetic and works on numbers seen in their binary form, while the other one is a conditional operator working in boolean values.
The fact that the single & also works with boolean types is just a side-effect because booleans can be considered numbers with just one binary digit (btw, in C, the language has no “boolean” predefined data type so it is often defined as a synonym of int by a macro).
So I really think the conclusion is that your workmate should stop using & for && and reserve the single & for binary calculations.
The same is true for | vs || by the way.
Best regards,
Vicne

]]>