Bitwise Examples

Overview

This document is an general overview of bitwise operators and how they are used in professional software development.

Repository

This repository (bitwise-operators) contains documention, working code samples, and interview questions.

Contributing

Feel free to open an issue or pull request against me/this repro with requests for corrections, elaboration, or more examples.

Repository Contents

Bitwise Operators Overview

Existing documents give an in-depth overview of bitwise operations:

• Bitwise operation
• Bit manipulation

Here's an overview I put together:

• Bitwise Operator Overview

Authentic uses of bitwise operators

Bitwise operators allow developers to evaluate and change the individual bits that make up primitive data types, usually some kind of int.

There are a few reasons developers might need to use bitwise operators. Consequently, you should expect that they will show up from time to time in coding interviews, especially when a position requires working in low-level platform code.

For a list of real-world uses of bitwise operators, read Real World uses of bitwise operators

Bitwise Operators and Interview Questions

Comfort with bitwise operators benefit entry-level software developer interview candidates. Interviewers may pose bitwise operator questions in particular so that candidates can demonstrate:

• their comfort level working with counting in non-base-10 representations.

• their comfort level solving problems by directly manipulating the binary representation of integers.

See the Interviews page for more information.

Code Examples

Examples

Resources

Here's a list of external sites and literature on this topic.

Resources