# New ways to Assign values to Variables in C++ 17 ?

Server Side ProgrammingProgramming

In C++ 17, there are introduced two new ways by which a programmer can assign values to a variable or declared them. In this update, elser then the classical way of assigning values to a variable the following two ways to initialise values.

## Classical method

Initially the assignment operator ‘=’ is used for assignment and declaration of a variable. assignment of a variable using = looks like,

datatype variable_name = value;

Example,

int val = 243;

## Uniform initialisation

In uniform initialisation of variables we do not use the ‘=’ operator. the value is enclosed inside a pair of curly braces ' {} '. Value inside the pair of curly braces is passed to the variable.

## Syntax

data_type variable_name{ value};

## Example

Live Demo

#include <iostream>
using namespace std;
int main() {
cout<<"Declaring Values using uniform initialization \n";
int val1{ 367 };
cout << "val1 = " <<val1<<endl;
int val2 = { 897 };
cout << "val2 = " << val2<<endl;
return 0;
}

## Output

Declaring Values using uniform initialization
val1 = 367
val2 = 897

## Constructor initialisation

another method to assign values to a variable. in constructor initialisation of variables, we use a pair of parentheses instead of the = operator. the value of variable is enclosed inside a pair of parentheses ( ).

## Syntax

data_type variable_name(values);

## Example

Live Demo

#include <iostream>
using namespace std;
int main() {
cout<<"Declaring Values using constructor initialization \n";
int val1( 367 );
cout << "val1 = " <<val1<<endl;
int val2 = ( 897 );
cout << "val2 = " << val2<<endl;
return 0;
}

## Output

Declaring Values using constructor initialization
val1 = 367
val2 = 897
Published on 04-Oct-2019 06:54:31