Ranged for loop with literal list?

Question

In C++11, is it possible to write the following

int ns[] = { 1, 5, 6, 2, 9 };
for (int n : ns) {
   ...
}

as something like this

for (int n : { 1, 5, 6, 2, 9 }) { // VC++11 rejects this form
   ...
}

Answer 1

It is possible to use this construction with an initializer list. Simply it seems the MS VC++ you are using does not support it.

Here is an example

#include <iostream>
#include <initializer_list>

int main() 
{
    for (int n : { 1, 5, 6, 2, 9 }) std::cout << n << ' ';
    std::cout << std::endl;

    return 0;
}

You have to include header <initializer_list> because the initializer list in the for statement is converted to std::initializer_list<int>