If operators

Question

Ok I think I know the answer to this but I am going to ask anyway, I an still very new to c#. Is there any way to put an or operator into an if statement: If (lcAge == 21 or lcAge == 22) Or does it have to be: If(lcAge == 21) { } else if(lcAge == 22) { } if it has to be the latter, how do you code get around duplicating code? Do you call functions within the if statements? If(lcAge == 21) { CheckAge(); } else if(lcAge == 22) { CheckAge(); } sorry for the level of question many thanks, Craig

david 0 · Answer

Echelon is incorrect in the difference between | and || operators (also & and && operators). The first is a BIT-WISE operation the individual bits of the expressions are and'ed and or'ed. The second is a logical opertion the result being true if either (both) operands are true. The logical operations stop as soon as the result is determinable (short-circuiting). Note to any C++ people out there. In C++ if you overload the logical operators short circuiting does NOT occur!.

c_wiley · Answer

Thanks chaps interesting to know about the doubling up stopping the short circuit. I come from a Visual FoxPro background so it being the same as C++ does not help me that much. Thanks again Craig

katana · Answer

Yeah the conditional operators are the same as in C++.. || && ..

buchholz · Answer

you mean somethign like this? || in c# the oeprators should be same as in c++ correct me if im wrong ;) if(lcAge == 21 || lcAge == 22) // OR { //the code working here will do the same for both cases. either 21 or 22. //any other age (20 ..or 32) will be ignored. } you can also do something like: if(lcAge1 == 21 && lcAge2 == 22) // AND { //the code here will only work incase lcAge1 == 21 and lcAge2 == 22 } there are also operators like & and | which mean the same but if the first thing already fits (e.g. lcAge1 == 21...) it won't check the second one but execute the code in the if- statement. if i mixed & && || and | up tell me ;)

james · Answer

the syntax would be if ((iceage == 21) || (iceage==22)) { }