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

"How do I create an STL vector and initialize it like the above? What is the best way to do so with the minimum typing effort?"

The easiest way to initialize a vector as you've initialized your built-in array is using an initializer list which was introduced in C++11.

// Initializing a vector that holds 2 elements of type int.
Initializing:
std::vector ivec = {10, 20};


// The push_back function is more of a form of assignment with the exception of course
//that it doesn't obliterate the value of the object it's being called on.
Assigning
ivec.push_back(30);

ivec is 3 elements in size after Assigning (labeled statement) is executed.