C++ is famous for getting all the default behaviors wrong and for sometimes making demons fly out of your nose. Through 25 puzzles, from the useful to the outright weird, we explore some of C++'s most interesting quirks. How does initialization actually work? Do temporaries even exist? Why is `+!!"" ` a valid expression in C++? As you work through each puzzle, you will peel off some of the layers of complexity of C++, getting a fundamental understanding of how the language works. This will help you write better code and recognize issues more easily while debugging. Each puzzle in the book is a complete, seemingly simple C++ program, but can you figure out the output for each, or will the answers stump you? Most of the programs compile and have deterministic, though sometimes surprising, output. Some might, however, have undefined behavior, where anything can happen, including making demons fly out of your nose! Yet others might have unspecified behavior with output that is not completely deterministic; we just know nothing as bad as nasal demons will happen. All puzzles are accompanied by detailed discussions, taking a look under the hood at what exactly is going on to help you understand more about C++'s unexpected behaviors, as well as fundamental concepts like initialization, overload resolution, and implicit conversions. For the non-deterministic cases, we'll explore some typical behaviors one can expect to see in practice, what causes them, and why they shouldn't be relied on. After working through the book, you'll have tools and techniques to help you write better and safer code, and a better understanding of the fundamentals of the language, the background for some of C++'s apparent weirdness, and a better feel for identifying bugs and unsafe code in your own programs. What You Need: The book assumes basic knowledge of C++. If you want to run the programs yourself, you can use either a local C++ compiler or the online compilers at https: //godbolt.org.

lgrsnf/sanet.st_C++ Brain Teasers-9798888650981.epub

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Pragmatic Programmers, LLC, The

GLOBAL ENTERTAINMENT SRL

United States, United States of America

Italy, Italy

Published: July 9, 2024 | Version: P1.0 (June 2024)

Foreword by Olve Maudal
Acknowledgments
Preface
How to Use This Book
Undefined Behavior
Unspecified and Implementation-Defined Behavior
Playing Around with the Code
Part I. C++ Brain Teasers
Puzzle 1. How Many Degrees?
Puzzle 2. String Theory
Puzzle 3. Hack the Planet!
Puzzle 4. Going Global
Puzzle 5. A Destructive Relationship
Puzzle 6. Who’s Up First?
Puzzle 7. All Good Things Must Come to an End
Puzzle 8. Will It Move?
Puzzle 9. Counting Copies
Puzzle 10. A Strange Assignment
Puzzle 11. What’s the Time of Death?
Puzzle 12. A False Start
Puzzle 13. A Constant Struggle
Puzzle 14. Aristotle’s Sum of Parts
Puzzle 15. Back from the Future
Puzzle 16. An Overloaded Container
Puzzle 17. A Strong Point
Puzzle 18. Moving Out
Puzzle 19. A Little Sum Thing
Puzzle 20. Monsters on the Move
Puzzle 21. Sizing Up Some Characters
Puzzle 22. The Phantom Spaceship
Puzzle 23. Off to a Good Start
Puzzle 24. A Specialized String Theory
Puzzle 25. Weakly Typed, Strongly Puzzling

2024-09-11