#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char *argv[]) {
    int i;
    char *str_result;
    char *str_dst = NULL;
    str_result =  malloc(100);
    str_dst =  malloc(100);

    strcpy(str_result, "Action done");
    size_t len = strlen(str_result);
    printf("string length is = %zu\n", len);
    memcpy(str_dst, str_result, len);
     str_dst[len]='\0';
     printf("%s\n", str_dst);

    free(str_dst);
    free(str_result);
     
    return 0;
}