Initializing class member (vector) in constructor via initialization list

Question

The C++11 standard gives an opportunity to initialize a vector with an initialization list like this.

vector  a {3, 5, 6, 2};

I am

Answer 1

You need to define a constructor for Foo that takes an initializer list, and pass it to the vector.

See http://en.cppreference.com/w/cpp/utility/initializer_list for an example that does exactly what you need