Illustrating the generic partial_sum algorithm : array algorithms « STL Introduction « C++ Tutorial

1. C++ Tutorial
2. STL Introduction
3. array algorithms

#include <algorithm>
#include <numeric>
#include <iostream>
using namespace std;

int main()
{
  const int N = 20;
  int x1[N], x2[N];

  for (int i = 0; i < N; ++i)
    x1[i] = i;

  // Compute the partial sums of 0, 1, 2, 3, ..., N - 1, putting the result inx2:
  partial_sum(&x1[0], &x1[N], &x2[0]);

  for (int i = 0; i < N; ++i)
    cout << x2[i] << " ";

  return 0;
}

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