Question

how can we store the value of dynamic char pointer into character array

Answer 1

Do you mean this?

#include <iostream>
#include <cstring>

using namespace std;

int main() {
    const char* c_str = "Hello world\n";
    char greetings[20];
    memcpy(greetings, c_str, strlen(c_str)+1);
    cout << greetings << endl;
    return 0;
}