c++ how to initialize const elements of an array

Question

i need a way to initialize const elements of an array for the program i am currently working on. The problem is that i have to initialize these elements with a function, there is no way to do it like this:

const int array[255] = {1, 1278632, 188, ...};

because its alot of data i have to generate. What i tried is to memcpy data to the const int's but that can't work and hasn't worked.

 const int array[255];

 void generateData(){
      for(int i = 0; i < 255; i++) {
          initializeSomehowTo(5, array[i]);
      }
 }

I hope you understand what i am trying, sorry if i doubled the question, i must have overlooked it.

Answer 1

How about this?

#include <array>
typedef std::array<int, 255> Array;

const Array array = generateData();

Array generateData(){
    Array a;
    for(int i = 0; i < a.size(); i++) {
        initializeSomehowTo(a[i]);
    }
    return a;
}