Zero to One

摘要： For example, suppose you'd like to write a template for fixed-size square matrices that, among other things, support matrix inversion. template<typena 阅读全文

摘要： Open as administrator the "x64 Native Tools Command Prompt for VS 2017" run: devenv and then open your project, add a new resource. 阅读全文

摘要： Suppose we need to write an application that can send messages to several different companies. Messages can be sent in either encrypted or cleartext ( 阅读全文

摘要： Question: what is the difference between class and typename in the following template declarations? template<class T> class Widget; // uses "class" te 阅读全文

摘要： Look what happens when we turn doProcessing from a function into a function template: void doProcessing(Widget& w) { if (w.size() > 10 && w != someNas 阅读全文

摘要： Multiple inheritance just means inheriting from more than one base class, but it is not uncommon for MI to be found in hierarchies that have higher-le 阅读全文

摘要： Item 32 demonstrates that C++ treats public inheritance as an is-a relationship. It does this by showing that compilers, when given a hierarchy in whi 阅读全文

摘要： Item 32 explains that public inheritance means "is-a." Composition has a meaning, too. Actually, it has two meanings. Composition means either "has-a" 阅读全文

摘要： 1. 赋值运算符的辨析： = 基本的赋值:= 覆盖之前的值?= 如果没有被赋值过,就赋予等号后面的值+= 添加等号后面的值 注意： make会将整个 makefile 展开后，再决定变量的值，例如： x = foo y = $(x) bar x = xyz 这个例子中，y的值将会是 xyz bar  阅读全文

摘要： Virtual functions are dynamically bound, but default parameter values are statically bound. An object’s static type is the type you declare it to have 阅读全文