variable-size array

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

int Size = 10;

int main(void) {
  /* Allocate Size integers, and point Array at them */
  int *Array = (int *) malloc(sizeof(int) * Size);

  if(Array == NULL) {
    puts("Error allocating memory");
    return -1;
  }

  /* You MUST call this when you''re done with the allocated
     memory. Afterwards, you can NOT use what Array is pointing
     at. */
  free(Array);

  return 0;
}

int Size = 10;

int main(void) {
  // Allocate an array of Size integers, and point Array at them.
  // new will throw an exception if it fails by default
  int *Array = new int[Size];

  // You MUST call this when you''re done with the allocated
  // memory. Afterwards, you can NOT use what Array is pointing
  // at.
  delete [] Array;

  return 0;
}

#include <vector>

int main(void) {
  // Allocate an array of Size integers within Array
  std::vector <int> Array(10);

  return 0;
}