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Difference in && and &= Messages   Related Types This message was discovered on microsoft.public.dotnet.languages.csharp. Post a new message to this list... Joel Run this method: public void test() { bool b; int i=0; b=false; i=0; b=(b && i++==1); Console.WriteLine(i.ToString()); b=false; i=0; b&=i++==1; Console.WriteLine(i.ToString()); } Notice how in the first syntax, i++ is NOT evaluated (because of short-circuit evaluation) but in the second syntax i++ is evaluated. I wonder if this was intentional or an oversight. It burned me in a situation when I was counting on short-circuit evaluation. <joel> Reply to this message...        Chris R. Timmons "Joel" <Click here to reveal e-mail address> wrote in news:eIfF$Click here to reveal e-mail address: [Original message clipped] Joel, & and && are two completely different operators. & performs a bitwise "and" of two numbers, but && is the boolean "and" operator. Change the && to & and both code blocks return the same result (1). -- Hope this helps. Chris. ------------- C.R. Timmons Consulting, Inc. http://www.crtimmonsinc.com/ Reply to this message...        Xarky "Chris R. Timmons" <Click here to reveal e-mail address> wrote in message news:<Xns95639CAC22BA5crtimmonscrtimmonsin@207.46.248.16>... [Original message clipped] Is short-circuit evaluation the same as lazy evaluation? Reply to this message...        Chris R. Timmons Click here to reveal e-mail address (Xarky) wrote in news:Click here to reveal e-mail address: [Original message clipped] http://en.wikipedia.org/wiki/Lazy_evaluation and http://en.wikipedia.org/wiki/Short_circuit -- Hope this helps. Chris. ------------- C.R. Timmons Consulting, Inc. http://www.crtimmonsinc.com/ Reply to this message...        Joel Yeah, I'm aware of the difference between & and && (and and and? ;-). Just pointing out a 'gotcha' that 'gotme'. </joel> "Chris R. Timmons" <Click here to reveal e-mail address> wrote in message news:Xns95648D90EBDEFcrtimmonscrtimmonsin@207.46.248.16... [Original message clipped] Reply to this message...     System.Console Ad MBR BootFX Best-of-breed application framework for .NET projects, developed by Matthew Baxter-Reynolds and MBR IT

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