std::valarray is an STL container with built-in algorithm support.


#include <cassert>

#include <functional>

#include <iostream>

#include <iterator>

#include <valarray>



int main()

{

  std::valarray<int> v;

  v.resize(3);

  v[0] = 0;

  v[1] = 1;

  v[2] = 2;



  //Add one to all elements

  v+=1;



  assert(v[0]==1);

  assert(v[1]==2);

  assert(v[2]==3);



  //Multiply all elements by 2

  v*=2;



  assert(v[0]==2);

  assert(v[1]==4);

  assert(v[2]==6);

}

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(C++) std::valarray