Dynamic size

[rielyn]

Dun is a dynamic body. How do you know his size?

[meriah]

If a dynamic mass means an index initialized by the type code

int* array = new int[42];

No way.

In some exercises, the size can be challenged https://msdn.microsoft.com/en-us/library/z2s077bc.aspx /msize/malloc_size, but the standard does not specify:

#include <malloc.h>
int main()

{

int *arr = new int[42];

int length = _msize(arr) / sizeof(int); // 42!
return 0;

}