Initializer list in a range for loop

Question

I have objects of different types derived from a single super-type. I wonder if there are any disadvantages in using std::initializer list in a range for loop like

Answer 1

There is no need to use the verbose std::initializer_list inside the loop

#include 
#include 

struct B { virtual int fun() { return 0; } };
struct D1 : B { int fun() { return 1; } };
struct D2 : B { int fun() { return 2; } };

int main()
{
    D1 x;
    D2 y;

    B* px = &x;
    B* py = &y;

    for (auto& e : { px, py })
            std::cout << e->fun() << "\n";    
}

Live Example.

If you want to do it on-the-fly without defining px and py, you can indeed use std::initializer_list{ &x, &y } inside the loop.