How do I find the address of a pointer?

To access address of a variable to a pointer, we use the unary operator & (ampersand) that returns the address of that variable. For example &x gives us address of variable x.

Which gives the memory address of a variable pointed to by pointer A?

A pointer is a variable that stores the address of another variable. Unlike other variables that hold values of a certain type, pointer holds the address of a variable. 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.

What is pointer explain how the pointer variable declared and initialized?

Pointer is declared using special character ‘*’ along with datatype pointer points and name of the pointer as an identifier. Pointer initialization is a programming technique in which pointer is assigned an address of a varible so that pointer points to specific value.

How do you assign an array address to a pointer?

How to assign address of array to pointer?

1. p = &arr[0] compiles because &arr[0] is the address of the first element of the array.
2. @RobertHarvey arr is an array, not an address.
3. @M.M It’s an address, the address of the first element in the array.

How do I print addresses in pointer?

Printing pointers. You can print a pointer value using printf with the \%p format specifier. To do so, you should convert the pointer to type void * first using a cast (see below for void * pointers), although on machines that don’t have different representations for different pointer types, this may not be necessary.

How do you assign a value to a pointer in C++?

How to use a pointer?

1. Define a pointer variable.
2. Assigning the address of a variable to a pointer using unary operator (&) which returns the address of that variable.
3. Accessing the value stored in the address using unary operator (*) which returns the value of the variable located at the address specified by its operand.

How are pointers declared in C?

The general syntax of pointer declaration is,

1. datatype *pointer_name;
2. int a = 10; int *ptr; //pointer declaration ptr = &a //pointer initialization.
3. float a; int *ptr = &a // ERROR, type mismatch.
4. int *ptr = NULL;