Do sqrt for all elements in a valarray : valarray « valarray « C++ Tutorial

1. C++ Tutorial
2. valarray
3. 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*i;

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

  v = sqrt(v);

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


  cout << endl;
}

Original contents: 0

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