partial_sum_value_t.cpp

#include <iostream>
#include <vector>
#include <numeric>
#include <iterator>
#include <cstdint>

int main()
{
    std::vector<std::uint8_t> u{255, 255};
    std::vector<int> i;

    std::partial_sum(u.begin(), u.end(), std::back_inserter(i));

    std::cout << i.back() << std::endl;
}