Open In App
Related Articles

valarray abs() function in C++

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Report issue
Report
The abs() function is defined in valarray header file. This function is used to calculate the absolute value of each element in the valarray and returns a valarray containing the absolute values of all the elements. Syntax:
abs(varr);
Parameter: This function takes a mandatory parameter varr which represents valarray. Returns: This function returns a valarray containing the absolute values of all the elements. Below programs illustrate the above function: Example 1:-
// C++ program to demonstrate
// example of abs() function.
  
#include <bits/stdc++.h>
using namespace std;
  
int main()
{
    // Initializing valarray
    valarray<int>
        varr = { 20, 12, -20, 0, -30 };
  
    // Declaring new valarray
    valarray<int> varr1;
  
    // use of abs() function
    // for finding abs value
    varr1 = abs(varr);
  
    // Displaying new elements value
    cout << "The new valarray with"
         << " manipulated values is : ";
  
    for (int& x : varr1) {
        cout << x << " ";
    }
  
    cout << endl;
  
    return 0;
}

                    
Output:
The new valarray with manipulated values is : 20 12 20 0 30
Example 2:-
// c++ program to demonstrate
// example of abs() function.
  
#include <bits/stdc++.h>
using namespace std;
int main()
{
    // Initializing valarray
    valarray<int>
        varr = { -36, -369, -20, 0, -30 };
  
    // Declaring new valarray
    valarray<int> varr1;
  
    // use of abs() function
    // for finding abs value
    varr1 = abs(varr);
  
    // Displaying new elements value
    cout << "The new valarray"
         << " with manipulated values is : ";
  
    for (int& x : varr1) {
        cout << x << " ";
    }
  
    cout << endl;
  
    return 0;
}

                    
Output:
The new valarray with manipulated values is : 36 369 20 0 30


Last Updated : 24 Oct, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads