Understanding Pointers In C By Yashwant Kanetkar Free Pdf 1763 -

int x = 10; int *ptr = &x; printf("%d", *ptr); // prints 10 This code dereferences the pointer ptr and prints the value stored at the memory address it points to, which is the value of x .

int *ptr; This declares a pointer variable ptr that can store the memory address of an int variable. int x = 10; int *ptr = &x;

To declare a pointer, you use the asterisk symbol (*) before the pointer name. For example: int x = 10

A pointer is a variable that stores the memory address of another variable. In other words, a pointer "points to" the location of a variable in memory. int *ptr = &x