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# Operations

what ist the difference between && and & or between| and || ?

11/22/2016 7:16:44 PM

Ozan Karataş

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Logical operators: OR || takes two conditionals, return true if EITHER is true AND && takes two conditionals, return true if BOTH are true Bitwise operators: work on the bit level, compare each bit that build a value and act accordingly i will use small values which can be represented with 4 bits only. we will find x on each example OR | example: 5 | 3 = x 5 = 0101 3 = 0011 x = 0111 = 7 (bits in x are set by the bits of 5,3) AND & example: 5 & 3 = x 5 = 0101 3 = 0011 x = 0001 = 1

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"|" and "&" work on more than just booleans, while "&&" and "||" work only on booleans. While "&&" and "||" evaluates both sides of the operation, the others don't. In a && operation for example, if the left side value is false, then it'll short circuit and cease the evaluation. But in a & evaluation, always evaluate both sides, making possible side-effects. Examples: int a = 0; if(a == 9 && ++a == 9){} Console.Write(a) //Output: 0 ------------------ int a = 0; if(a == 9 & ++a == 9){} Console.Write(a) //Output: 1 I'am sorry if my english is not good enough to explain better.

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thank you for ur answer :)