iWave Systems Technologies Member Technical Interview Questions and Answers

Bitwise operations in C are used to manipulate individual bits of data in variables.

• Bitwise AND (&) - sets a bit to 1 only if both corresponding bits are 1

• Bitwise OR (|) - sets a bit to 1 if either of the corresponding bits is 1

• Bitwise XOR (^) - sets a bit to 1 if the corresponding bits are different

• Bitwise NOT (~) - inverts all the bits in a variable

• Left shift (<<) - shifts the bits to the left by a specified number o

Linked list is a data structure in C programming where each element points to the next element in the list.

• Linked list is made up of nodes, each containing data and a pointer to the next node.

• Insertion and deletion operations are efficient in linked lists compared to arrays.

• Traversal in linked list requires iterating through each node starting from the head node.

• Example: struct Node { int data; struct Node* next; };

• Exa...read more

Pointer manipulation in C involves accessing and modifying memory addresses to work with data efficiently.

• Pointers are variables that store memory addresses.

• They are used to access and manipulate data directly in memory.

• Example: int *ptr; ptr = # *ptr = 10;