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Please enable JavaScript in your browser settings or update your browser.Keywords sizeof(), auto and typedef | Variables and Data Types
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

Keywords sizeof(), auto and typedefKeywords sizeof(), auto and typedef

The size of a variable is the amount of memory reserved by the compiler. The compiler reserves a specific number of bytes from your computer's memory, based on the data type you are using. You can use the sizeof() function to find out the size of a variable or data type in bytes.

cpp

main.cpp

C++ allows you to select a type with a precise bit size, such as int8_t, uint8_t, int16_t,uint16_t, etc. To use these data types, you will need to include the <cstdint> header file.

Additionally, we can force the compiler to determine the variable type on its own using the auto keyword.

cpp

main.cpp

C++ also allows you to rename existing data types for yourself. This is what typedef is used for.

cpp

main.cpp

When compiled, the typedef line tells the compiler that MY_NEW_TYPE is just a double type.

Все було зрозуміло?

Секція 2. Розділ 6
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

Keywords sizeof(), auto and typedefKeywords sizeof(), auto and typedef

The size of a variable is the amount of memory reserved by the compiler. The compiler reserves a specific number of bytes from your computer's memory, based on the data type you are using. You can use the sizeof() function to find out the size of a variable or data type in bytes.

cpp

main.cpp

C++ allows you to select a type with a precise bit size, such as int8_t, uint8_t, int16_t,uint16_t, etc. To use these data types, you will need to include the <cstdint> header file.

Additionally, we can force the compiler to determine the variable type on its own using the auto keyword.

cpp

main.cpp

C++ also allows you to rename existing data types for yourself. This is what typedef is used for.

cpp

main.cpp

When compiled, the typedef line tells the compiler that MY_NEW_TYPE is just a double type.

Все було зрозуміло?

Секція 2. Розділ 6
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