Quick int pointer allocation question

[bearophile]

monarch_dodra:

>> int *p = [5].ptr;
>>
>> -Steve

But see this benchmark:


void main() {
     auto pointers = new int*[1_000_000];
     foreach (int i, ref p; pointers)
         p = [i].ptr;
     foreach (i; 0U .. 4_000_000_000U) {}
}


On my 32 bit system its RAM commit is about 23 MB. The pointers 
array takes about 4 MB. This means each "int" takes about 19 
bytes of heap RAM instead of 4. Each int allocates some data 
(capacity) to extend the array.

Bye,
bearophile