sizeof() function can not give the size of memory locations allocated using new, malloc, calloc and realloc. VC++ provides a macro for the above purpose and it is _msize. See the following code segment.
#include <iostream>
using namespace std;
int main()
{
// Allocate 10 integer locations
// = a toatl of 40 in 32 bit platforms
int* pInt = new int[10];
size_t Size = _msize(pInt);
cout << Size << '\n';
return 0;
}
The result will be 40.
