C++ Lambda Expressions in function templates

#include <iostream>
#include <iomanip>
#include <vector>
#include <functional>
#include <cmath>                            // For pow()
using std::vector;

template <typename T> void setValues(vector<T>& vec, std::function<void(T&)> fun) {
  for (int i {} ; i < vec.size() ; ++i)
    fun(vec[i]);/* w w w .j  ava  2s .c  om*/
}

template<class T> void listVector(const vector<T>& vec) {
  int count {};
  const int valuesPerLine {5};
  auto print = [&count, valuesPerLine](T value) {
           std::cout << std::setw(10) << value << "  ";
           if (++count % valuesPerLine == 0)
              std::cout << std::endl;
  };
  for (int i {} ; i < vec.size() ; ++i)
    print(vec[i]);
}

int main()
{

  vector<int> integerData(50);

  int current {1};

  int increment {1};

  setValues<int>(integerData, [increment, &current](int& v) mutable{ v = current + ++increment++; current = v; });

  std::cout << "Integer vector contains :" << std::endl;

  listVector(integerData);


  vector<double> values(10);

  int power {};

  double x {2.5};

  setValues<double>(values, [power, x](double& v) mutable{ v = std::pow(x, power++); });

  std::cout << "\nDouble vector contains:" << std::endl;

  listVector(values);
}