Pointer operators

For all value and reference types, there's a pointer version of it(T*), the pointer instance stores the address of the variable.

operator	name	usage
&	address-of operator	returns a pointer to the address of a variable
*	dereference operator	returns the variable at the address of a pointer, in other words, returns a pointer
->	pointer-to-member operator	syntactic sugar in which x->y is equivalent to (*x).y
++	pointer addition operator	adds sizeof(T) to the address contained in the variable
--	pointer subtraction operator	subtracts sizeof(T) to the address contained in the variable
[]	pointer element accessor	retrieve value of address with an offset, in which p[i] is equivalent to *(p + i)

Pointer Increment and Decrement

If a pointer increment or decrement operation overflows the domain of the pointer type, the result is implementation-defined, but no exceptions are produced.

T* operator ++(T* x);
T* operator --(T* x);

Pointer Arithmetic

T* operator +(T* x, int y);
T* operator +(T* x, uint y);
T* operator +(T* x, long y);
T* operator +(T* x, ulong y);
T* operator +(int x, T* y);
T* operator +(uint x, T* y);
T* operator +(long x, T* y);
T* operator +(ulong x, T* y);
T* operator –(T* x, int y);
T* operator –(T* x, uint y);
T* operator –(T* x, long y);
T* operator –(T* x, ulong y);
long operator –(T* x, T* y);

Pointer comparison

See Void Pointer

Operator priority

• ++ or -- > *, *p++ is equivalent to *(p++).

sizeof Operator