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C++ Gotchas: Avoiding Common Problems in Coding and Design

By Stephen C. Dewhurst

Published by Addison-Wesley Professional

Published Date: Nov 26, 2002

Description

"This may well be the best C++ book I have ever read. I was surprised by the amount I learned."

--Matthew Wilson, Development Consultant, Synesis Software

C++ Gotchas is the professional programmer's guide to avoiding and correcting ninety-nine of the most common, destructive, and interesting C++ design and programming errors. It also serves as an inside look at the more subtle C++ features and programming techniques.

This book discusses basic errors present in almost all C++ code, as well as complex mistakes in syntax, preprocessing, conversions, initialization, memory and resource management, polymorphism, class design, and hierarchy design. Each error and its repercussions are explained in context, and the resolution of each problem is detailed and demonstrated.

Author Stephen Dewhurst supplies readers with idioms and design patterns that can be used to generate customized solutions for common problems. Readers will also learn more about commonly misunderstood features of C++ used in advanced programming and design. A companion Web site, located at http://www.semantics.org, includes detailed code samples from the book.

Readers will discover:

  • How to escape both common and complex traps associated with C++
  • How to produce more reusable, maintainable code
  • Advanced C++ programming techniques
  • Nuances of the C++ language

C++ Gotchas shows how to navigate through the greatest dangers in C++ programming, and gives programmers the practical know-how they need to gain expert status.



0321125185B10212002

Table of Contents



Preface.


Acknowledgments.


1. Basics.

Gotcha #1: Excessive Commenting.

Gotcha #2: Magic Numbers.

Gotcha #3: Global Variables.

Gotcha #4: Failure to Distinguish Overloading from Default Initialization.

Gotcha #5: Misunderstanding References.

Gotcha #6: Misunderstanding Const.

Gotcha #7: Ignorance of Base Language Subtleties.

Gotcha #8: Failure to Distinguish Access and Visibility.

Gotcha #9: Using Bad Language.

Gotcha #10: Ignorance of Idiom.

Gotcha #11: Unnecessary Cleverness.

Gotcha #12: Adolescent Behavior.



2. Syntax.

Gotcha #13: Array/Initializer Confusion.

Gotcha #14: Evaluation Order Indecision.

Gotcha #15: Precedence Problems.

Gotcha #16: for Statement Debacle.

Gotcha #17: Maximal Munch Problems.

Gotcha #18: Creative Declaration-Specifier Ordering.

Gotcha #19: Function/Object Ambiguity.

Gotcha #20: Migrating Type-Qualifiers.

Gotcha #21: Self Initialization.

Gotcha #22: Static and Extern Types.

Gotcha #23: Operator Function Lookup Anomaly.

Gotcha #24: Operator — Subtleties.



3. The Preprocessor.

Gotcha #25: #define Literals.

Gotcha #26: #define Pseudofunctions.

Gotcha #27: Overuse of #if.

Gotcha #28: Side Effects in Assertions.



4. Conversions.

Gotcha #29: Converting Through void *.

Gotcha #30: Slicing.

Gotcha #31: Misunderstanding Pointer-to-Const Conversion.

Gotcha #32: Misunderstanding Pointer-to-Pointer-to-Const Conversion.

Gotcha #33: Misunderstanding Pointer-to-Pointer-to-Base Conversion.

Gotcha #34: Pointer-to-MultiDimensional Array Problems.

Gotcha #35: Unchecked Downcasting.

Gotcha #36: Misusing Conversion Operators.

Gotcha #37: Unintended Constructor Conversion.

Gotcha #38: Casting Under Multiple Inheritance.

Gotcha #39: Casting Incomplete Types.

Gotcha #40: Old-Style Casts.

Gotcha #41: Static Casts.

Gotcha #42: Temporary Initialization of Formal Arguments.

Gotcha #43: Temporary Lifetime.

Gotcha #44: References and Temporaries.

Gotcha #45: Ambiguity Failure of dynamic_cast.

Gotcha #46: Misunderstanding Contravariance.



5. Initialization.

Gotcha #47: Assignment/Initialization Confusion.

Gotcha #48: Improperly Scoped Variables.

Gotcha #49: Failure to Appreciate C++'s Fixation on Copy Operations.

Gotcha #50: Bitwise Copy of Class Objects.

Gotcha #51: Confusing Initialization and Assignment in Constructors.

Gotcha #52: Inconsistent Ordering of the Member Initialization List.

Gotcha #53: Virtual Base Default Initialization.

Gotcha #54: Copy Constructor Base Initialization.

Gotcha #55: Runtime Static Initialization Order.

Gotcha #56: Direct versus Copy Initialization.

Gotcha #57: Direct Argument Initialization.

Gotcha #58: Ignorance of the Return Value Optimizations.

Gotcha #59: Initializing a Static Member in a Constructor.



6. Memory and Resource Management.

Gotcha #60: Failure to Distinguish Scalar and Array Allocation.

Gotcha #61: Checking for Allocation Failure.

Gotcha #62: Replacing Global New and Delete.

Gotcha #63: Confusing Scope and Activation of Member new and delete.

Gotcha #64: Throwing String Literals.

Gotcha #65: Improper Exception Mechanics.

Gotcha #66: Abusing Local Addresses.

Gotcha #67: Failure to Employ Resource Acquisition Is Initialization.

Gotcha #68: Improper Use of auto_ptr.



7. Polymorphism.

Gotcha #69: Type Codes.

Gotcha #70: Nonvirtual Base Class Destructor.

Gotcha #71: Hiding Nonvirtual Functions.

Gotcha #72: Making Template Methods Too Flexible.

Gotcha #73: Overloading Virtual Functions.

Gotcha #74: Virtual Functions with Default Argument Initializers.

Gotcha #75: Calling Virtual Functions in Constructors and Destructors.

Gotcha #76: Virtual Assignment.

Gotcha #77: Failure to Distinguish among Overloading, Overriding, and Hiding.

Gotcha #78: Failure to Grok Virtual Functions and Overriding.

Gotcha #79: Dominance Issues.



8. Class Design.

Gotcha #80: Get/Set Interfaces.

Gotcha #81: Const and Reference Data Members.

Gotcha #82: Not Understanding the Meaning of Const Member Functions.

Gotcha #83: Failure to Distinguish Aggregation and Acquaintance.

Gotcha #84: Improper Operator Overloading.

Gotcha #85: Precedence and Overloading.

Gotcha #86: Friend versus Member Operators.

Gotcha #87: Problems with Increment and Decrement.

Gotcha #88: Misunderstanding Templated Copy Operations.



9. Hierarchy Design.

Gotcha #89: Arrays of Class Objects.

Gotcha #90: Improper Container Substitutability.

Gotcha #91: Failure to Understand Protected Access.

Gotcha #92: Public Inheritance for Code Reuse.

Gotcha #93: Concrete Public Base Classes.

Gotcha #94: Failure to Employ Degenerate Hierarchies.

Gotcha #95: Overuse of Inheritance.

Gotcha #96: Type-Based Control Structures.

Gotcha #97: Cosmic Hierarchies.

Gotcha #98: Asking Personal Questions of an Object.

Gotcha #99: Capability Queries.



Bibliography.


Index. 0321125185T11072002

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ISBN-10: 0-13-265188-2

ISBN-13: 978-0-13-265188-2

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