junk.cpp

#include <iostream>

int foo[10][10];

void init() {
  for (auto i = 0; i < 10; ++i) {
    for (auto j = 0; j < 10; ++j) {
      foo[i][j] = i + j;
    }
  }
}

int** caller() {
  int** x = new int *;
  for (auto i = 0; i < 10; ++i) {
    x[i] = &foo[i][0];
  }
  return x;
}

int main(int argc, char *argv[]) {
  init();
  auto x = caller();
  for (auto i = 0; i < 10; ++i) {
    for (auto j = 0; j < 10; ++j) {
      std::cout << foo[i][j] << " vs " << x[i][j] << std::endl;
    }
  }
  delete x;
  return 0;
}