const and pointers

const int *p1 = &x;        // pointer to const int
int *const p2 = &x;        // const pointer to int
const int *const p3 = &x;  // const pointer to const int

Pointer	*p (value)	p (address)
const int *p1	✗ locked	✓ allowed
int *const p2	✓ allowed	✗ locked
const int *const p3	✗ locked	✗ locked

💡 Read right→left: const int *p = "p is a pointer to const int"