What is the easiest way to initialize a std::vector with hardcoded elements?

Question

I can create an array and initialize it like this:

int a[] = {10, 20, 30};

How do I create a std::vector and initialize it sim

Answer 1

If you want something on the same general order as Boost::assign without creating a dependency on Boost, the following is at least vaguely similar:

template
class make_vector {
    std::vector data;
public:
    make_vector(T const &val) { 
        data.push_back(val);
    }

    make_vector &operator,(T const &t) {
        data.push_back(t);
        return *this;
    }

    operator std::vector() { return data; }
};

template 
make_vector makeVect(T const &t) { 
    return make_vector(t);
}

While I wish the syntax for using it was cleaner, it's still not particularly awful:

std::vector x = (makeVect(1), 2, 3, 4);