Pointer to Pointer (Double Pointer)

In Go, a pointer to a pointer (also called a double pointer) is a pointer that stores the address of another pointer. Instead of pointing to a direct value, a double pointer points to the memory address of another pointer, which then points to the actual value.

Declaring a Double Pointer

A double pointer is a pointer that holds the memory address of another pointer.

Syntax for Declaring a Double Pointer

var ptr1 *dataType  // Pointer to a value
var ptr2 **dataType // Pointer to another pointer

Explanation

• `*dataType