How to use Bitwise Operators in Programming? What is bitwise operator?
In programming, bitwise operators are fundamental tools for manipulating binary values at the bit level. They allow programmers to perform logical operations on individual bits within a binary number, rather than the number as a whole. Understanding how bitwise operators work is essential for programming in low-level languages such as assembly and C, as well as for optimizing code in higher-level languages.
Let us start with understanding what is a bit (binary digit). A bit (binary digit) is the smallest unit of data that a computer can process. A bit can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively. A bitwise operator is a character representing an action that works on data at the bit level rather than with bytes or larger units of data, as is more common.
There are six bitwise operators in most programming languages: bitwise AND (&), bitwise OR (|), bitwise XOR (^), bitwise NOT (~), left shift, and right shift. Each operator performs a different operation on the bits of one or two binary values.
Bitwise AND (&) is used to compare two binary values bit by bit and return a new binary value where each bit is set to 1 only if both corresponding bits in the original values were 1.
Bitwise OR (|) is used to compare two binary values bit by bit and return a new binary value where each bit is set to 1 if either corresponding bit in the original values was 1. Otherwise, the bit is set to 0.
Bitwise XOR (^) is used to compare two binary values bit by bit and return a new binary value where each bit is set to 1 only if the corresponding bits in the original values were different (i.e., one was 0 and the other was 1). Otherwise, the bit is set to 0.
Bitwise NOT (~) is a unary operator that performs a logical negation on a binary value, flipping each bit from 0 to 1 and vice versa.
Left shift is used to shift the bits of a binary value to the left by a specified number of places. The bits that are shifted off the end are lost, and the bits that are shifted in on the right are set to 0.
Right shift is used to shift the bits of a binary value to the right by a specified number of places. The bits that are shifted off the end are lost, and the bits that are shifted in on the left are set to 0 or 1, depending on the implementation. If the original value was positive, the new bits will be set to 0, while if it was negative, the new bits will be set to 1.
Bitwise operators are often used in conjunction with masks, which are binary values that are used to extract or modify specific bits within another value.
In conclusion, bitwise operators are powerful tools for manipulating binary values in programming. Understanding how they work is essential for low-level programming and can also be useful for optimizing code and implementing complex algorithms
0:00 What are Bitwise Operators in Programming?
0:15 What is a bit in computer science?
0:37 Difference between bitwise operators and arithmetic operators
0:55 Syntax of bitwise operator
1:10 Definition of bitwise operators
1:43 Types of bitwise operators in programming
2:11 How to use bitwise operators / functionality of bitwise operator
2:26 Bitwise AND in coding
2:48 Bitwise OR in coding
2:53 Bitwise excluse OR / XOR in programming
3:10 Bitwise NOT in programming
3:18 Shift left / shift right bitwise operator
3:39 Example of Bitwise AND Operator in programming
5:04 Example of Bitwise OR Operator in programming
6:11 Example of Bitwise Exclusive OR (XOR) Operator in programming
7:23 Example of Bitwise NOT Operator in programming
8:40 Example of Left shift operator in programming
9:51 Example of Right shift operator in programming
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