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譯序(侯捷)

導讀(Introduction)

基礎議題(Basics)

條款1：仔細區別 pointers 和 references

Distinguish between pointers and references.

條款2：好使用 C 轉型操作符

Prefer C -style casts.

條款3：不要以多態(polymorphically)方式處理數組

Never treat arrays polymorphically.

條款4：非必要不提供 default constructor

Avoid gratuitous default constructors.

操作符(Operators)

條款5：對定制的“類型轉換函數”保持警覺

Be wary of user-defined conversion functions.

條款6：區別 increment/decrement 操作符的

前置(prefix)和后置(postfix)形式

Distinguish between prefix and postfix forms of increment

and decrement operators.

條款7：千萬不要重載&&，||和, 操作符

Never overload &&, ||, or ,.

條款8：了解各種不同意義的 new 和 delete

Understand the different meanings of new and delete

異常(Exceptions)

條款9：利用 destructors 避免泄漏資源

Use destructors to prevent resource leaks.

條款10：在 constructors 內阻止資源泄漏(resource leak)

Prevent resource leaks in constructors.

條款11：禁止異常(exceptions)流出 destructors 之外

Prevent exceptions from leaving destructors.

條款12：了解“拋出一個 exception”與“傳遞一個參數”

或“調用一個虛函數”之間的差異61

Understand how throwing an exception differs from

passing a parameter or calling a virtual function.

條款13：以 by reference 方式捕捉 exceptions

Catch exceptions by reference.

條款14：明智運用 exception specifications

Use exception specifications judiciously.

條款15：了解異常處理(exception handling)的成本

Understand the costs of exception handling.

效率(Efficiency)

條款16：謹記 80-20 法則

Remember the 80-20 rule.

條款17：考慮使用 lazy evaluation(緩式評估)

Consider using lazy evaluation.

條款18：分期攤還預期的計算成本

Amortize the cost of expected computations.

條款19：了解臨時對象的來源

Understand the origin of temporary objects.

條款20：協助完成“返回值優化(RVO)”

Facilitate the return value optimization.

條款21：利用重載技術(overload)避免隱式類型轉換(implict type conversions)

Overload to avoid implicit type conversions.

條款22：考慮以操作符復合形式(op=)取代其獨身形式(op)

Consider using op= instead of stand-alone op.

條款23：考慮使用其他程序庫

Consider alternative libraries.

條款24：了解 virtual functions、multiple inheritance、virtual base classes、

runtime type identification 的成本

Understand the costs of virtual functions, multiple inheritance,

virtual base classes, and RTTI.

技術(Techniques, Idioms, Patterns)

雜項討論(Miscellany)

索引(一)(General Index)

索引(二)(Index of Example Classes，Functions，and Templtes)