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Write More Elegant C++ Programs
The official C++ Core Guidelines provide consistent best practices for writing outstanding modern C++ code and improving legacy code, but they're organized as a reference for looking up one specific point at a time, not as a tutorial for working developers. In C++ Core Guidelines Explained, expert C++ instructor Rainer Grimm has distilled them to their essence, removing esoterica, sharing new insights and context, and presenting well-tested examples from his own training courses.
Grimm helps experienced C++ programmers use the Core Guidelines with any recent version of the language, from C++11 onward. Most of his code examples are written for C++17, with added coverage of newer versions and C++20 wherever appropriate, and references to the official C++ Core Guidelines online.
Whether you're creating new software or improving legacy code, Grimm will help you get more value from the Core Guidelines' most useful rules, as you write code that's safer, clearer, more efficient, and easier to maintain.
Apply the guidelines and underlying programming philosophy
Correctly use interfaces, functions, classes, enum, resources, expressions, and statements
Optimize performance, implement concurrency and parallelism, and handle errors
Work effectively with constants, immutability, templates, generics, and metaprogramming
Improve your C++ style, manage source files, and use the Standard Library
"We are very pleased to see Rainer Grimm applying his teaching skills and industrial background to tackling the hard and necessary task of making the C++ Core Guidelines accessible to more people."
--Bjarne Stroustrup and Herb Sutter, co-editors, C++ Core Guidelines
Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.
Contents
List of selected C++ Core Guidelines xiii
List of figures xxiii
List of tables xxvii
Foreword xxix
Preface xxxi
Acknowledgments xxxvii
About the author xxxix
Part I: The Guidelines 1
Chapter 1: Introduction 3
Target readership 3
Aim 4
Non-aims 4
Enforcement 4
Structure 4
Major sections 5
Chapter 2: Philosophy 7
Chapter 3: Interfaces 15
The curse of non-const global variables 16
Dependency injection as a cure 18
Making good interfaces 20
Related rules 25
Chapter 4: Functions 27
Function definitions 28
Parameter passing: in and out 32
Parameter passing: ownership semantics 38
Value return semantics 42
Other functions 46
Related rules 52
Chapter 5: Classes and Class Hierarchies 53
Summary rules 54
Concrete types 58
Constructors, assignments, and destructors 59
Class hierarchies 98
Overloading and overloaded operators 117
Unions 126
Related rules 129
Chapter 6: Enumerations 131
General rules 131
Related rules 137
Chapter 7: Resource Management 139
General rules 140
Allocation and deallocation 145
Smart pointers 150
Related rules 164
Chapter 8: Expressions and Statements 165
General 166
Declarations 168
Expressions 186
Statements 199
Arithmetic 204
Related rules 210
Chapter 9: Performance 213
Wrong optimizations 214
Wrong assumptions 214
Enable optimization 218
Related rules 230
Chapter 10: Concurrency 231
General guidelines 232
Concurrency 245
Parallelism 266
Message passing 269
Lock-free programming 273
Related rules 277
Chapter 11: Error Handling 279
Design 281
Implementation 283
If you can't throw 288
Related rules 292
Chapter 12: Constants and Immutability 293
Use const 294
Use constexpr 298
Chapter 13: Templates and Generic Programming 301
Use 302
Interfaces 305
Definition 320
Hierarchies 330
Variadic templates 332
Metaprogramming 336
Other rules 362
Related rules 372
Chapter 14: C-Style Programming 375
Entire source code available 376
Entire source code not available 378
Chapter 15: Source Files 383
Interface and implementation files 384
Namespaces 391
Chapter 16: The Standard Library 397
Containers 398
Text 404
Input and output 411
Related rules 419
Part II: Supporting Sections 421
Chapter 17: Architectural Ideas 423
Chapter 18: Nonrules and Myths 427
Chapter 19: Profiles 437
Pro.typeType safety 438
Pro.boundsBounds safety 439
Pro.lifetimeLifetime safety 439
Chapter 20: Guidelines Support Library 441
Views 441
Ownership pointers 442
Assertions 443
Utilities 443
Part III: Appendixes 445
Appendix A: Enforcing the C++ Core Guidelines 447
Visual Studio 448
clang-tidy 450
Appendix B: Concepts 453
Appendix C: Contracts 457
Index 459
