Lambda Expressions/Functions in C++ Programming

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A lambda function is a type of anonymous function that allows you to define and use a function in-place, without the need to declare it separately. In this program, a lambda function is created to calculate the sum of two integers, which are passed as parameters to the function.

The auto keyword is used to automatically deduce the return type of the lambda function. In this case, the lambda function returns an integer, which is the result of adding the two parameters.

The sum variable is initialized with the lambda function, and then called with arguments 5 and 6. The result of the function is then printed to the console using cout.

Source Code

//Lambda Expressions/Functions
#include <iostream>
using namespace std;
int main()
{
    auto sum =[](int a,int b)
    {
        return a+b;
    };
    cout <<"Total :"<< sum(5, 6) << endl;
    return 0;
}
 

Output

Total :11

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• C++ Introduction
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• Why we using namespace std in C++
• Getting Inputs in C++
• std::string class in C++
• if Statement in C++
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• else if Statement in C++
• Nested if Statement in C++
• Switch Statement in C++
• Group Switch Statement in C++
• Salary Calculation using IF Statement in C++
• Insurance Eligibility Status using C++
• Library Fine Calculation using C++
• While Loop in C++
• do While Loop in C++
• For Loop in C++
• For Each Loop in C++
• Sum of N Numbers in C++
• Factors of a Given Number using C++
• Armstrong Number using C++
• Prime Number using C++
• Arrays in C++
• Search an Element in an array in C++
• Sum of Elements in an array in C++
• Greatest Elements in an array in C++
• Sort Elements in an array in C++
• Function In C++
• Function Overloading In C++
• Default Argument Function In C++
• Template In C++
• Enum In C++
• Class in C++
• What is Public Access Specifier in C++
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• Scope Resolution :: Operator in C++
• Default Constructor in C++
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• Constructor Overloading in C++
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• Single Inheritance in C++
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• Diamond Problem in C++
• Diamond Problem using Constructor in C++
• Bank Management System using Class & inheritance in C++
• What is Protected Access Specifier in C++
• Function Overriding in C++
• Operator Overloading in C++
• Unary Operator Overloading in C++
• Base Class Pointer derived Class Object in C++
• Virtual Function in C++
• Sample Virtual Function in C++
• Pure Virtual Function & Abstract Class in C++
• What is Abstraction in C++
• Getter & Setter , this Keyword in C++
• Static variables and Static Function in C++
• Friend Function in C++
• Friend Class in C++
• Change Private Values Using Friend Class in C++
• Single Value Member Initializer List in C++
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• Add value to Base Class Constructor Using Member Initializer List in C++
• Initialized Const variable using Member Initializer List in C++
• Constructor’s parameter name is same as data member using Member Initializer List in C++
• Narrowing conversion Problem in Member Initializer in C++
• inline Function in C++
• Lambda Expressions/Functions in C++
• Preprocessor Directive in C++
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Flow Control

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IF Statement Examples

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• If Statement in C++
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Switch Case

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• Basic Switch Case Example
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Goto Statement

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• Factorial using Goto in C++
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• Printing Given Word using Goto
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• Sum of Numbers using Goto
• Print Tables using Goto
• Print Reverse Tables using Goto

Break and Continue

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• Printing Numbers in C++
• Printing Continues Numbers in C++

While Loop

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• Armstrong Number using While Loop
• Decimal to Binary in C++
• Printing Even & Odd Numbers
• Printing Positive & Negative Numbers
• Prime between two Numbers
• Find Prime or Composite
• Printing Numbers in C++
• Tables using While Loop
• Reverse Tables using While Loop

Do While Loop

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• Printing Array using Do While Loop
• Printing given Word
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For Loop

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• Sum of Numbers using For Loop
• Sum of Two Square using For Loop
• Alphabet Diamond Pattern
• Armstrong number using For Loop
• Cubic Numbers using For Loop
• Divisible by 7 using For Loop
• Fibonacci series using For Loop
• Formula Examples using For Loop
• Reverse Number Pattern
• Number Patterns using For Loop
• Odd & Even Numbers using For Loop
• Printing Star Diamond Pattern in C++
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• Diamond Pattern Outline in C++
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• Printing Tables using For Loop
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• Sum of Even & Odd using For Loop
• Squaring Numbers using For Loop
• Reverse Printing Number using in C++
• Prime or Composite using For Loop
• Common Patten Examples in C++

Friend Function in C++

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• Basic Friend Function Example
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• Private & Protected Example in C++

String Examples

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Array Examples

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• Display Marks using Array
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• Find Smallest Number using Array
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Structure Examples

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Structure & Pointer Examples

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Structure & Functions Examples

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Enumeration Examples

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Template Examples

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• Addition using Template
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Functions

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• Hello World using Function
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• Check Prime Number using Function
• Tables using Function in C++
• Update Function in C++
• Display Marksheet using Function in C++
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Inheritance Examples

Hierarchical Inheritance

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• Basic Example of Hierarchical
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Hybrid Inheritance

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• Multiplication using Hybrid Inheritance

Multilevel Inheritance

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• Basic Example of Multilevel Inheritance
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Multiple Inheritance

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• Basic Example of Multiple Inheritance
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Single Level Inheritance

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• Basic Example of Single Level Inheritance
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Class and Objects

• Find Box Volume using Objects
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Constructor Example

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• Area of Rectangle using Constructor
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Destructor Example

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• Destructor Example in C++

Operator Overloading Example

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• Assignment Operator Overloading Example
• Binary Operator Example
• Increment & Decrement Example
• Input & Output Example
• Relational Operator Distance Example
• Operator Overloading Example
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Operator and Function Example

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• Display Values using Friend Function

List of Programs

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• Classes Example in C++
• Pointer to Classes in C++
• Data Hiding in C++
• Constructor Example in C++
• Copy Constructor in C++
• Scope Example in C++
• Inline Function in C++
• Struct vs Class in C++
• Operator Overloading in C++
• Friend Function in C++
• Insertion Overload in C++
• Inheritance Example in C++
• Single Inheritance in C++
• Access Specifier in C++
• Function Overriding in C++
• Runtime Polymorphism in C++
• Abstract Class in C++
• Friend Class in C++
• Static Member in C++
• Static Member Function in C++
• Nested or InnerClass in C++
• Dynamic Heap in C++
• Try Catch in C++
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• More About Catch in C++
• Template in C++
• Template Class in C++

Pointer Examples

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• Basic Example of Pointer in C++
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• Null Pointer Example in C++

Memory Management Examples

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• Dynamic Memory Allocation Example
• Creation & Deletion Array Example

Pointers and Arrays

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• Basic Example of Pointer & Array
• Print Character using Pointer & Array
• Print Floating Values Example in C++
• Print Array Values Example in C++

Virtual Function Examples

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• Basic Example of Virtual Function
• Load Features Example in C++

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