C++ Math llround

This function is used to round off the given value and cast to long long integer.

Syntax

Suppose a number is 'x'. Syntax would be:

long long int llround(data_type x);

Parameter

x : The value that can be either double or float.

Return value

It returns the rounded value of x. The return type of the function is long long integer.

Example 1

Let's see a simple example.

#include <iostream>
#include<math.h>
using namespace std;
int main()
{
    float x=50.8;
    std::cout <<"The value of x is :" <<x<< std::endl;
    std::cout << "The rounded value of x is :"<<llround(x) << std::endl;
    return 0;
}

Output:

The value of x is :50.8
The rounded value of x is :51