sample.cxx

#include <boost/multi_array.hpp>
#include <algorithm>
#include <random>
#include <iostream>

int main(){
  using value_type = size_t;
  const size_t dimension = 3;
  using c = boost::multi_array<value_type, dimension>;

  const size_t scaling = 2;
  auto a = c(boost::extents[scaling][scaling][scaling]);

  auto origin_begin = a.origin();
  auto origin_end   = origin_begin + a.num_elements();
  const value_type index_initial = 0;
  std::iota(origin_begin, origin_end, index_initial);

  std::random_device rd;
  std::mt19937_64 rng(rd());
  std::shuffle(origin_begin, origin_end, rng);

  for(const auto& a0: a)
    for(const auto& a1: a0)
      for(const auto& v: a1)
        std::cout << v << " ";
  std::cout << std::endl;
}