C++ stepping iota template for ints and floats

step_iota.cpp

// Use of lambda with std::accumulate to only add numbers that are n
#include <numeric>
#include <iterator>
#include <iostream>
#include <algorithm>
#include <iostream>
#include <list>
#include <numeric>
#include <random>
#include <vector>
#include <numeric>

template<typename ForwardIterator, typename T>
void step_iota(ForwardIterator first, ForwardIterator last, T value, T step)
{
	while (first != last)
		*first++ = value, value += step;
}


int main()
{
	std::vector<float> vec(100);
	step_iota(std::begin(vec), std::next(std::begin(vec), 100), 0.0f, 0.5f);

	for (const auto& elem : vec)
	{
		std::cout << elem << ' ';
	}

	std::vector<float> intvec(100);
	step_iota(std::begin(intvec), std::next(std::begin(intvec), 100), 0, 5);

	for (const auto& elem : intvec)
	{
		std::cout << elem << ' ';
	}
	std::list<int> l(10);
	std::iota(l.begin(), l.end(), -4);

	std::vector<std::list<int>::iterator> v(l.size());
	std::iota(v.begin(), v.end(), l.begin());

	std::shuffle(v.begin(), v.end(), std::mt19937{ std::random_device{}() });

	std::cout << "\nContents of the list: ";
	for (auto n : l) std::cout << n << ' ';
	std::cout << '\n';

	std::cout << "\nContents of the list, shuffled: ";
	for (auto i : v) std::cout << *i << ' ';
	std::cout << '\n';
}