Bitwise Operators Summary

Lesson 8 of 17 in Coddy's Bit Manipulation course.

Okay so now we know what bit manipulation is. We use bitwise operators to manipulate bits. Lets recap the operators we learned.

Bitwise Operators

A bitwise operator is used to perform bitwise operations on bit patterns or binary numbers that involve the manipulation of individual bits. Again a bit represents either 0 or 1. So, bitwise operators takes in account these sequence of bits and manipulate them. One thing to note here is that throughout this course we will only be dealing with unsigned numbers ( an unsigned number has only magnitude, basically positive numbers only ) .

Now C++ offers several different bitwise operators.

Operator name	Operator represented by	Number of operands
Bitwise NOT	~	1
Bitwise OR	\|	2
Bitwise AND	&	2
Bitwise XOR	^	2
Bitwise left shift	<<	2
Bitwise right shift	>>	2

The above table shows what bitwise operators C++ offers and the symbol used that identify them and the number of operands they operate on.

Try it yourself

This lesson doesn't include a code challenge.

All lessons in Bit Manipulation

1Introduction and basics

What is bit manipulation?Why we need bit manipulation?Binary and decimal numbers NOT & OR operators AND operator XOR operator Right and left shift operatorsBitwise Operators Summary

2Bit Algorithms

Power of 2 Number occurring odd times Number of set-bits Rotate bits of a number I Rotate bits of a number II

3Practice challenges

Tina and her bits assignment XORty Find K Find Minimum Sum