Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Type of Functions | Introduction to Functions
C++ Introduction
course content

Course Content

C++ Introduction

C++ Introduction

1. Getting Started
What is C++Entry Point of a ProgramStandard Library and FilesPreprocessor DirectivesThe First Program
2. Introduction to Operators
Operators IntroductionArithmetic Operators PracticeRelational OperatorsLogical Operators
3. Variables and Data Types
Data TypesUnderstanding VariablesNumerical Data TypesIntroduction to StringIntroduction to ArraysWorking with the Array
4. Introduction to Program Flow
Conditional StatementsTernary OperatorSwitch StatementWhile LoopFor LoopPracticing With Loops
5. Introduction to Functions
What are Functions?Type of FunctionsReturn Statement in Functions Simple Function Practice

bookType of Functions

When creating a function, the data type of the return value must always be specified. In the main function, the return type is declared as int, indicating that it will return an integer value upon completion. In most cases, the main function returns 0 to signify that the program has successfully executed.

cpp

main

copy

              
1234

            
int main()
{
	return 0;
}

Note

Since the main function is reserved in C++, it will always return integer.

Custom functions can return any value, but it's essential to understand that the type of the return value must match the specified return type in the function definition.

h

custom_function

copy

              
1234

            
___ custom_function()
{
    return ___;
}

Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 5. Chapter 2
We're sorry to hear that something went wrong. What happened?
some-alt