Which operator is use to find address of a variable?

Answer 1

The dereference operator. In C, we use the * operator for this. Note that the * symbol has several meanings in C (multiplication, pointer declaration and pointer dereferencing). The meaning is determined from the context in which it is used.

int x, y; /* integer variables */

int* p; /* pointer variable (pointer to int) */

x = 42; /* assign a value to the x variable */

p = &x; /* assign the address of the x variable to the pointer variable p */

y = *p; /* assign the value pointed to by p (42) to the variable y */

Answer 2

Under C, the address of a variable or a function can be obtained by prefixing the name with an ampersand (&), which is called a "reference operator". The address is typically stored in a pointer variable. To access the value in a pointer variable, an asterisk (*) is used, which is called a "dereference operator".

For instance:

void dosomethinguseless()

{

int x=50;

int *y;

y=&x;

printf("%d, %d\n", x, *y);

}

- First, an integer variable called "x" is declared and preloaded with the value "50".

- Next, a variable called "y" is declared as an integer pointer.

- After that, the address of "x" is stored into "y", so that "y" now points to the address where the value of "x" is stored.

- Finally, both variables are printed to demonstrate that they, in one fashion or another, represent the value "50".

See the related link below for more information on C pointers.

Answer 3

pointer is used to know the address of avariable

Answer 4

It is '&' in C

Answer 5

Arrow operator