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C++ Introduction

Bitwise Shift OperatorsBitwise Shift Operators

What is a byte

This is a byte, a fundamental unit of digital information storage. A byte consists of 8 bits.

At the core of digital information storage is the byte, composed of 8 bits. Each bit represents a binary digit, and numbers are commonly expressed in the binary system, a base-2 numeral system. The binary representation involves expressing a number as a sum of powers of 2.

Binary Representation Examples

Consider the number 4, which in binary is represented as 00000100. Each bit in this byte corresponds to a power of 2:

0+0+0+0+0+2²+0+0 = 4

Similarly, the number 5 is represented as 00000101:

0+0+0+0+0+2²+0+2⁰ = 5

Bitwise shift

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  • In this context, a single left bit shift effectively multiplies the value by 2;
  • Conversely, when we execute a single right bit shift, divides the value by 2.

Think of the right and left shift operation >> OR << by n positions as a division by 2^n. In the case of 10 >> 3, it is effectively dividing 10 by 2^3 (which is 8), and the result is 1.

cpp

main.cpp

Note

Try shifting value to the left (<<) or right (>>) by different positions.

Все було зрозуміло?

Секція 3. Розділ 5
course content

Зміст курсу

C++ Introduction

1. Getting Started

Why to Learn C++What is C++Entry Point of a ProgramStandard Library and FilesPreprocessor DirectivesThe First Program

2. Variables and Data Types

Introduction to VariablesData TypesNumerical Data TypesIntroduction to StringIntroduction to ArraysKeywords sizeof(), auto and typedefWorking with the Array

3. Introduction to Operators

Simple OperatorsA Little MathLogical OperatorsCompound Assignment OperatorBitwise Shift OperatorsPracticing Math Basics

4. Introduction to Program Flow

If...else StatementTernary OperatorSwitch StatementWhile LoopDo...while LoopFor LoopFibonacci Number with Loops

5. Introduction to Functions

What are Functions?Type of FunctionsReturn Statement in FunctionsFunctions With Arguments Simple Function

C++ Introduction

Bitwise Shift OperatorsBitwise Shift Operators

What is a byte

This is a byte, a fundamental unit of digital information storage. A byte consists of 8 bits.

At the core of digital information storage is the byte, composed of 8 bits. Each bit represents a binary digit, and numbers are commonly expressed in the binary system, a base-2 numeral system. The binary representation involves expressing a number as a sum of powers of 2.

Binary Representation Examples

Consider the number 4, which in binary is represented as 00000100. Each bit in this byte corresponds to a power of 2:

0+0+0+0+0+2²+0+0 = 4

Similarly, the number 5 is represented as 00000101:

0+0+0+0+0+2²+0+2⁰ = 5

Bitwise shift

Click👇
  • In this context, a single left bit shift effectively multiplies the value by 2;
  • Conversely, when we execute a single right bit shift, divides the value by 2.

Think of the right and left shift operation >> OR << by n positions as a division by 2^n. In the case of 10 >> 3, it is effectively dividing 10 by 2^3 (which is 8), and the result is 1.

cpp

main.cpp

Note

Try shifting value to the left (<<) or right (>>) by different positions.

Все було зрозуміло?

Секція 3. Розділ 5
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