Question

Which of the following should be true for pointers subtraction to make sense?

Cosmo · Accepted Answer

Pointer subtraction yields the number of array elements between two pointers of the same type. For example,

int arr[5] = /* initializer here */;
&arr[5] - &arr[0];  // yields 5, the difference is 5 elements

Cosmo · Accepted Answer

Both pointers point to elements of the same array

Cosmo · Answer

Both pointers are referred to using the &amp operation

Cosmo · Answer

Both pointers are of void* type

Cosmo · Answer

Both pointers are created by the

new

operator

Cosmo · Answer

Both pointers point to objects of the same type