Determine array size in constructor initializer

Question

In the code below I would like array to be defined as an array of size x when the Class constructor is called. How can I do that?

class Class
{
public:
  int         


        

Answer 1

Don't you understand there is not need to use vector, if one wants to use arrays it's a matter of efficiency, e.g. less space, no copy time (in such case if handled properly there is not even need to delete the array within a destructor), etc. wichever reasons one has.

the correct answer is: (quoted)

class Class
{
   int* array;
   Class(int x) : array(new int[x]) {};
};

Do not try to force one to use non optimal alternatives or you'll be confusing unexperienced programmers