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