Explain C++ code

Question

Can I get some help with explanation of the following code?

#include 

class Vector {
    private:
        double∗ elem; // pointer to the el         


        

Answer 1

Maybe it's the new C++11 initialisation-lists that are confusing you, you now can initialise a variable with curly-braces {}. For example:

int i{42};
std::vector v{1, 2, 3, 4};

everything else in your code looks pretty standard pre-C++11