As such, it can easily be flung off to a function in C programming. Like any variable or constant, you must declare a pointer before using it to store any variable address. A. Afreen Khan. Join The Discussion. Passing pointers between methods can cause undefined behavior. How to initialize pointer variable. Pointers Pointer is a variable in C++ that holds the address of another variable.Like any variable or constant, you must declare a pointer before you can work with it. You can use reference operator & to get memory location of a variable or you can … With pointer variables you can access but not modify data in other variables. In C++11, the nullptr keyword was introduced to represent the address 0. The body of your question asks whether "a pointer is a data type or not". Consider a method that returns a pointer to a local variable through an in, out, or ref parameter or as the function result. Dereferencing a pointer can … A pointer variable can be . 2 Bytes. Pointer Variable of any type contains integer address because address of variable is always integer. True. Example to declare pointer variable int * ptr; In above example I declared an integer pointer. pointer-variable-name is a valid C identifier i.e. A pointer variable is a variable that contains an address, usually the address of another variable. Yes, but it needs to have the right type. Consider the 32 bit compiler. Your son can act as a pointer variable of sorts. A pointer variable can be? When you make your reservation, you may be assigned room 0x100. 10 Bytes. A pointer is also called reference type variable in generic way.int *pa = &a; can be stated like pa is a pointer to an integer.pa points to a.Just like a has a content (55), pa has a content (that's the address of a).As pa itself is a variable, it has an address too.. What will be the size of integer pointer ? A C# pointer is nothing but a variable that holds the memory address of another type. Question 4. D. They have data type just like variables, for example an integer type pointer can hold the address of an integer variable and an character type pointer can hold the address of char variable. C. return by a function. C# supports pointers in a limited extent. If you declare int *ptr, **ptr1;, then ptr1 has type "pointer to int *" and thus can point to ptr. D. all. For example, given: int *ptr; ptr is a pointer object, and its type is int*, which is a pointer type. A. passed to a function as argument. If the pointer was set in a fixed block, the variable to which it points may no longer be fixed. B. change within a function. Answer: Option B . True. Home / Green Board / Miscellaneous / Question. A pointer stores the address of a variable and the value of a variable can be accessed using dereferencing of the pointer. Even more thrilling, a pointer can wander back from a function as a return value. We need to store address of integer variable to integer pointer. The answer is simple: a pointer variable is of some pointer type. . A pointer is used to point to a memory location of a variable. The asterisk * used to declare a pointer … A pointer is a type of variable. The following table lists the operators and … B. You might tell your son that you will be in room 0x100 on your trip. An array name is a pointer constant because the address stored in it cannot be changed at runtime. In your example int *ptr,*ptr1; both ptr and ptr1 have type "pointer to int", which can only point to an int, not a pointer. There are two ways to initialize a pointer variable. The general form of a pointer variable declaration is − type *var-name; Here, type is the pointer's base type; it must be a valid C data type and var-name is the name of the pointer variable. But in C# pointer can only be declared to hold the memory address of value types and arrays. Oftentimes, these tricks are the only ways to … the name of pointer variable. This is somewhat analogous to a hotel. False. By any reasonable definition of the phrase "data type", pointer types are data types. 3 years ago . The content of a can be obtained using pa.This is called dereferencing a pointer. A pointer is generally initialized as: datatype *variable name; This above declaration is a single pointer but there can be more … C. 4 Bytes. Be accessed using dereferencing of the phrase `` data type or not '' C programming whether a!, you must declare a pointer variable of any type contains integer address because address another. Variable to which it points may no longer be fixed accessed using dereferencing of the.... Pointer was set in a fixed block, the nullptr keyword was introduced to represent the address of a be. Another type address because address of variable function in C # pointer can a! Your trip your trip from a function in C # pointer is a data type or not '' pointer set! 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