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

int main(void) {
  size_t nbL = 100;
  size_t nbC = 500000000;
  printf("Tentative d'allocation pour %zu x %zu entiers\n", nbL, nbC);
  printf("soit %zu octets (environ %zu Go)\n", nbL * nbC * sizeof(int), (nbL * nbC * sizeof(int)) >> 30);
  int** ti =(int**) calloc(nbL, sizeof(int*));
  if (ti != NULL) {
    int i = 0;
    while ((i < nbL) && ((ti[i] = (int*) calloc(nbC, sizeof(int))) != NULL)) {
      i++;
      printf("+");
    }
    printf("\n");
    if (ti[nbL - 1] == NULL) {
      printf("Allocation impossible a la ligne %d/%zu\n", i + 1, nbL);
      printf("Desallocation de ce qui avait ete alloue\n");
      for (int j = 0; j < i; j++) {
        free(ti[j]);
        ti[j] = NULL;
        printf("-");
      }
      printf("\n");
      free(ti);
      ti = NULL;
    }
  }
  printf("\n");
  if (ti != NULL) {
    printf("Allocation reussie\n");
  }
  else {
    printf("Allocation avortee\n");
  }
  if (ti != NULL) {
    for (int i = 0; i < nbL; i++) {
      free(ti[i]);
      ti[i] = NULL;
    }
    free(ti);
    ti = NULL;
    printf("Desallocation terminee\n");
  }
  return 0;
}