The De-referencing Operator (*): When placed before a pointer variable, this tells the computer to "go to the address stored here and get the value."
If an integer occupies 4 bytes of memory, incrementing an integer pointer shifts it by 4 bytes, not 1.
Kanetkar is known for a conversational tone and logical progression that helps beginners overcome "pointer fear".
Kanetkar simplifies pointer operations by focusing heavily on just two operators: the and the Indirection Operator ( * ) . The Ampersand ( & ) Operator
: Also known as the dereferencing operator, this fetches the value stored at a specific memory address. Syntax and Implementation
Direct memory access comes with significant risk. Minor logical mistakes can lead to critical security vulnerabilities or system crashes. 1. Dangling Pointers
If you want to learn more about pointers in C, here are some additional resources:
The "dereference" or "indirection" operator. It allows you to access or manipulate the data sitting inside that memory address. The Magic of Dereferencing
int i = 3; int *j; // Declaration: j is a pointer to an integer j = &i; // j now stores the address of i printf("%d", *j); // Execution: "Give me the value at the address stored in j" (Outputs 3) Use code with caution. 4. Pointer Arithmetic: The Tricky Part
Implementing linked lists, trees, graphs, and stacks is impossible without pointers linking nodes together. Call by Value vs. Call by Reference