What exactly is a pointer? A pointer is a variable that stores the address of another variable. Like any variable or constant, you must declare a pointer before you can work with it. The general form of a pointer variable declaration is . The pointer p holds that address The * operator is used in two dierent ways: 1. Stated simply, a pointer is nothing more than a variable that holds an address in the computer's memory. In computer science, a pointer is a programming language data type whose value refers directly to (or "points to") another value stored elsewhere in the computer memory using its address. A pointer is a variable which stores a memory address, nothing more nothing less. Whether the mouse uses a laser or ball, or is wired or wireless , a movement detected from the mouse sends instructions to the computer to move the cursor on the screen in order to interact 2. When a pointer to an array is used, it is made to point to any element in the array Pointers are a necessary facet of almost every computer program written, whether for personal, academic, or commercial use. See our text cursor page for full information about this type of cursor.. 2. The usage of the * and & operators with pointers/references can be confusing. A pointer is a simple The number of bytes allocated to the variable depends on its type.For instance, a character is allocated 1 byte, an int is, in general, allocated 4 bytes, and Memory addresses are 32-bits long on most CPUs today, although there is a increasing trend toward 64-bit addressing). type *var-name; Here, type is the pointer's base type; it must be a valid C++ type and var-name is the name of the pointer By moving the mouse, the computer's user can move the mouse pointer around the screen. The mouse, sometimes called a pointer, is a hand-operated input device used to manipulate objects on a computer screen. Alternatively referred to as a caret or a cursor, a text cursor is a visual representation of where you'll see text appear when you begin typing. For example, an integer variable holds (or you can say stores) an integer value, however an integer pointer holds the address of a integer variable. This tutorial will explain when and how to use them. (2) In programming, a variable that holds the address of another variable or the address of the beginning of an array of variables. A mouse pointer, or a cursor, is a visible indicator displayed on a computer screen. Obtaining or requesting the value to which a pointer refers is called dereferencing the pointer. With a mouse, a cursor describes an object (e.g, an arrow (1) In database management, an address embedded within the data that specifies the location of data in another record or file. The location of i has a specific address, in this case 248,440. That's it. 1. This is where a pointer Unlike other variables that hold values of a certain type, pointer holds the address of a variable. A cursor may refer to any of the following:. The pointer p also consumes 4 bytes (on most machines in use today, a pointer consumes 4 bytes of memory. A pointer is a very powerful and sophisticated feature provided in the C language. A pointer is a variable that contains an address to a variable. A pointer is both defined and dereferenced (yielding the value stored at the memory location that it points to) with the '*' operator; the expression is mnemonic. Most of what's written about pointers is about how to use them effectively: 1. A pointer is a variable whose value is the address of another variable. When declaring a pointer, * is placed before the variable name to indicate that the variable being declared is a pointer say, a pointer to an int or char, not an int or char value. Where the mouse pointer is located on the screen can determine how and where the user can press a button on the mouse to input text A variable defined in a program the compiler allocates a space in the memory to store its value.