6
For example, suppose every single inheritor of SomeBase implements a
begin()/end() pair required for iteration. How can you iterate the object
inside a member of SomeBase? Intuition suggests that you cannot, because
SomeBase itself does not provide a begin()/end() interface. But if you use
CRTP, you can actually cast this to a derived class type:
1 template <typename Derived>
2 struct SomeBase
3 {
4 void foo()
5 {
6 for (auto& item : *static_cast<Derived*>(this))
7 {
8 ...
9 }
10 }
11 }
For a concrete example of this approach, check out Chapter 9.
Mixin Inheritance
In C++, a class can be defined to inherit from its own template argument,
for example:
1 template <typename T> struct Mixin : T
2 {
3 ...
4 }
This approach is called mixin inheritance and allows hierarchical
composition of types. For example, you can allow Foo<Bar<Baz>> x; to
declare a variable of a type that implements the traits of all three classes,
without having to actually construct a brand new FooBarBaz type.
For a concrete example of this approach, check out Chapter 9.
Chapter 1 IntroduCtIon
剩余308页未读，继续阅读
地上睡着一只趴着的低等生命体C
- 粉丝: 0
- 资源: 1
我的内容管理
展开
最新资源
- Vue实现iOS原生Picker组件：详细解析与实现思路
- Arduino蓝牙小车：参数调试与功能控制
- 百度Java面试精华：200页精选资源涵盖核心知识点
- Swift使用CoreData填坑指南：CoreData在Swift 3.0的变化
- 微距离无线充电器创新设计及其实验探索
- MTK Android平台开发全攻略：44步详解流程
- RecyclerView全面解析：替代ListView的新选择
- Android开发：自动适配中英文键盘解决方案
- Android调用WebService接口教程
- Android开发：BitmapUtil图片处理全解析与实例
- Android多线程断点续传实现详解
- PCA算法在人脸识别会议签到系统中的应用
- EventBus 3.0：Android事件总线详解与实战应用
- Android FileUtil：全面解析文件操作实用技巧与实例
- RecyclerView添加头部和尾部实战教程
- Android实现微博滑动固定顶部栏实战与优化
资源上传下载、课程学习等过程中有任何疑问或建议，欢迎提出宝贵意见哦~我们会及时处理！
点击此处反馈
