#include <iostream>

struct Foo
{
  int val;
  Foo() : val(25) {}
  Foo(int x) : val(x) {}
  Foo(int x, int y) : val(x*y) {}
};

int main(int argc, char** argv)
{
  // array[0] calls converting constructor
  // array[3] calls default constructor
  Foo array[4] = { 5, Foo(10), Foo(5, 10) };

  // 5, 10, 50, 25
  for (int i = 0; i < 4; ++i)
  {
    std::cout << i << ": " << array[i].val << std::endl;
  }

  return 0;
}