A pointer only holds an address information (location) in the memory.
if a pointer holds points another pointer then it is a pointer to an other pointer.
Pointer holds an address in the memory so in that address there is an other location information that shows another location.
A Null pointer has the value 0. void pointer is a generic pointer introduced by ANSI. Before ANSI, char pointers are used as generic pointer. Generic pointer can hold the address of any data type. Pointers point to a memory address, and data can be stored at that address.
a USB laser pointer is simply a laser pointer powered by the USB socket.
The pointer.
Void Pointer is a General purpose pointer ,that does not have any data type associated with it and can store address of any type of variable. Declaration: void * pointer_name;
In normal internet browsing and scrolling through a page, the mouse pointer appears as an arrow. However, when you point to a hyperlink, the mouse pointer appears as a hand.
1. pointer to a constant means you can not change what the pointer points to 2. constant pointer means you can not change the pointer.
Example: int x; -- integer int *px= &x; -- pointer to integer int **ppx= &px; -- pointer to pointer to integer int ***pppx= &ppx; -- pointer to pointer to pointer to integer
pointer is the variable that holds the address of another variable
Double pointer is a pointer to a pointer. So you can work with the double pointer as you work with a single one.Or you might mean 'pointer to double', eg:void clear_double (double *dp){*dp = 0;}
Double (**) is used to denote the double pointer. As we know the pointer stores the address of variable, Double pointer stores the address of any pointer variable. Declaration : int **ptr2Ptr;
Pointer to Pointer is a double pointer, denoted by (**). Pointer stores the address of the variable and pointer to pointer stores the address of a pointer variable and syntax can be given as int **ptr2ptr;
Void pointer can hold the address of any kind of pointer. But we can't operate on void pointer
the move pointer
A cell pointer is a
Pointers come in different breeds. For example: German Short Haired Pointer and English Pointer.
No. Pointer is pointer and middle is middle. If anyone told you pointer = middle, he/she was making fun of you.
When a variable is declared as being a pointer to type void it is known as a generic pointer. Since you cannot have a variable of type void, the pointer will not point to any data and therefore cannot be dereferenced. It is still a pointer though, to use it you just have to cast it to another kind of pointer first. Hence the term Generic pointer.