What are Bitwise operators and for what purpose can they be used?

Bitwise operators are special operators applied to binary bit-level values of numbers. These operators perform various operations by manipulating the binary bits of numbers. These operators include "AND (&)", "OR (|)", "XOR (^)", "NOT (~)", "left shift (<<)", and "right shift (>>)".
  • And(&) => If the two bits are both 1, the result is 1, otherwise it is 0.
  • Or(|) => If any of the two bits is 1, the result is 1.
  • Xor(^) => If the two bits are different, the result is 1; if they are the same, the result is 0.
  • Not(~) => It reverses the bits, that is, if it is 0, it becomes 1, if it is 1, it becomes 0.
  • Left Shift (<<) => Shifts the specified number of bits to the left and adds 0 to the remaining bits.
  • Right Shift (>>) => Shifts a specified number of bits to the right, usually adding 0 to the remaining bits.

Performance Optimization

Bitwise operators allow you to write faster and more efficient code in certain situations. In particular, bitwise operations that are directly supported by processors can run faster than arithmetic operations in some cases.

Data Manipulation

Bitwise operators provide direct access and manipulation of specific bits in the data structure. For example, bitwise operators can be used to set or reset a specific bit within a byte.

Masking

Bitwise operators are used in masking technique to manipulate specific bits. A mask is used to preserve certain bits while changing others. This is a frequently used technique, especially in the fields of programming or data analysis.

Flags and Status Control

Bitwise operators can be used to represent various states within the program. For example, you can perform a check on a set of bytes by using bytes that represent different states within a set of bytes.

Data Packaging and Parsing

Bitwise operators can be used to pack and unpack data. It is useful for operations such as placing or removing certain bits from certain areas.

Processor Layout Independence

Bitwise operators can reduce dependency on specific processor architectures. This is particularly advantageous for portable software development and hardware independence.

So for what purpose can it be used in a normal project?

I will explain it through web projects, for example, if you are going to create an authorization system on your site, you can do it by using bitwise operators instead of using "write=true, read=true..". I believe that using Bitwise operators would be a healthier choice. If you need a sample code on this subject, just click me.


 

How about giving your opinion by commenting on this post?

Previous Post Next Post