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About the Book

Life would be much simpler if computers just did exactly what we told them to do. Unfortunately, the reality is far more complex. In the realm of software development, we frequently encounter situations where our assumptions about program behavior clash with the actual mechanics of how computers execute our code. This disconnect is perhaps most dramatically illustrated in the concept of undefined behavior.

About the Author

Thomas Peuß’s avatar Thomas Peuß

The author holds a Master's degree in Computer Science and brings decades of hands-on experience to their work. Their career spans roles as a software developer, software architect, and site reliability engineer across both innovative startups and established corporations.

With a keen focus on software quality, they have dedicated their career to identifying, understanding, and eliminating undefined behavior in software systems. This expertise has been honed through years of navigating the complex challenges that arise when code ventures into uncharted territories of language specifications and implementation details.

As a contractor who has worked in diverse technical environments, they've developed unique insights into how undefined behavior manifests across different codebases, teams, and organizational cultures. Their approach combines rigorous theoretical understanding with practical strategies for building robust, predictable software systems that stand the test of time and scale.

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