Use valarray + valarray to double the value for each element in valarray : valarray « Valarray « C++






  1. C++
  2. Valarray
  3. valarray

Use valarray + valarray to double the value for each element in valarray

 
 



#include <iostream>
#include <valarray>
#include <cmath>
using namespace std;

int main()
{
  valarray<int> v(10);

  for(int i=0; i<10; i++)
      v[i] = i;

  cout << "Original contents: ";
  for(int i=0; i<10; i++)
    cout << v[i] << " \n\n";

  v = v + v;

  for(int i=0; i<10; i++)
    cout << v[i] << " \n\n";


  cout << endl;
}

/* 
Original contents: 0

1

2

3

4

5

6

7

8

9

0

2

4

6

8

10

12

14

16

18



 */








Related examples in the same category

1.Create valarray of bool value by using comparison operator on another valarray
2.Minus 10 from each element in a valarray
3.Do sqrt for all elements in a valarray
4.Print three-dimensional valarray line-by-line
5.Print valarray as two-dimensional array
6.valarray with double value inside