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