Is there a way to statically-initialize a dynamically-allocated array in C++?

Question

In C++, I can statically initialize an array, e.g.:

int a[] = { 1, 2, 3 };

Is there an easy way to initialize a dynamically-allocated array

Answer 1

Using helper variable:

const int p_data[] = {1, 2, 3};
int* p = (int*)memcpy(new int[3], p_data, sizeof(p_data));

or, one line

int p_data[] = {1, 2, 3},  *p = (int*)memcpy(new int[3], p_data, sizeof(p_data));