Heap and Stack

• The stack memory is when a function is called, the memory is allocated for local variables etc and is released when out of scope.
• Memory is allocated on the heap when the new keyword is used and must be released by using the delete keyword.

int foo()
{
  char *pBuffer; //<--nothing allocated yet (excluding the pointer itself, which is allocated here on the stack).
  bool b = true; // Allocated on the stack.
  if(b)
  {
    //Create 500 bytes on the stack
    char buffer[500];

    //Create 500 bytes on the heap
    pBuffer = new char[500];

   }//<-- buffer is deallocated here, pBuffer is not
}//<--- oops there's a memory leak, I should have called delete[] pBuffer;

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