what are the "\t" for in arrays in c++ code example

Example 1: array syntax in c++

int foo [] = { 16, 2, 77, 40, 12071 };

Example 2: for loop with array c++

int v[] = {1,2,3,4,5};
for (int n : v)
  cout << n << endl;
//make sure to compile with -std=c++11