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

char* creerCopieChaineDeCaracteres(char* s) {
  char* dst = (char*) calloc(strlen(s) + 1, sizeof(char));
  if (dst != NULL) {
    strcpy(dst, s);
  }
  return dst;
}

void main(void) {
  char* s = "abcdefgh";
  char* ns = creerCopieChaineDeCaracteres(s);
  if (ns != NULL) {
    printf("Chaine a copier : %s\n", s);
    printf("Chaine copiee   : %s\n", ns);
  }
  if (ns != NULL) {
    free(ns);
    ns = NULL;
  }
}