译序(侯捷)

导读(Introduction)

基础议题(Basics)

条款1：仔细区别 pointers 和 references

Distinguish between pointers and references.

条款2：好使用 C 转型操作符

Prefer C -style casts.

条款3：不要以多态(polymorphically)方式处理数组

Never treat arrays polymorphically.

条款4：非必要不提供 default constructor

Avoid gratuitous default constructors.

操作符(Operators)

条款5：对定制的“类型转换函数”保持警觉

Be wary of user-defined conversion functions.

条款6：区别 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.

条款7：千万不要重载&&，||和, 操作符

Never overload &&, ||, or ,.

条款8：了解各种不同意义的 new 和 delete

Understand the different meanings of new and delete

异常(Exceptions)

条款9：利用 destructors 避免泄漏资源

Use destructors to prevent resource leaks.

条款10：在 constructors 内阻止资源泄漏(resource leak)

Prevent resource leaks in constructors.

条款11：禁止异常(exceptions)流出 destructors 之外

Prevent exceptions from leaving destructors.

条款12：了解“抛出一个 exception”与“传递一个参数”

或“调用一个虚函数”之间的差异61

Understand how throwing an exception differs from

passing a parameter or calling a virtual function.

条款13：以 by reference 方式捕捉 exceptions

Catch exceptions by reference.

条款14：明智运用 exception specifications

Use exception specifications judiciously.

条款15：了解异常处理(exception handling)的成本

Understand the costs of exception handling.

效率(Efficiency)

条款16：谨记 80-20 法则

Remember the 80-20 rule.

条款17：考虑使用 lazy evaluation(缓式评估)

Consider using lazy evaluation.

条款18：分期摊还预期的计算成本

Amortize the cost of expected computations.

条款19：了解临时对象的来源

Understand the origin of temporary objects.

条款20：协助完成“返回值优化(RVO)”

Facilitate the return value optimization.

条款21：利用重载技术(overload)避免隐式类型转换(implict type conversions)

Overload to avoid implicit type conversions.

条款22：考虑以操作符复合形式(op=)取代其独身形式(op)

Consider using op= instead of stand-alone op.

条款23：考虑使用其他程序库

Consider alternative libraries.

条款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.

技术(Techniques, Idioms, Patterns)

杂项讨论(Miscellany)

索引(一)(General Index)

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