Ray's playground

摘要： Familiarize yourself with the language standard. 阅读全文

摘要： Make sure the C++ and C compilers produce compatible object files.Declare functions to be used by both languages extern "C".If at all possible, write main in C++.Always use delete with memory from new; always use free with memory from malloc.Limit what you pass between the two languages to 阅读全文

摘要： The general rule remains: non-leaf classes should be abstract. You may need to bend the rule when working with outside libraries, but in code over which you have control, adherence to it will yield dividends in the form of increased reliability, robustness, comprehensibility, and extensibility t... 阅读全文

摘要： The Prototype pattern is one of the simplest design patterns. A client knows an abstractPrototype class. At runtime any object that is a subclass of the abstract Prototype canbe cloned at the client’s will. So the client can make multiple instances of the same typewithout creating them manually. 阅读全文

摘要： Good software adapts well to change. It accommodates new features, it ports to new platforms, it adjusts to new demands, it handles new inputs. Software this flexible, this robust, and this reliable does not come about by accident. It is designed and implemented by programmers who conform to th... 阅读全文

摘要： Let us assume, however, that you must implement your game in C++ — that you must come up with your own way of implementing what is commonly referred to as double-dispatching. (The name comes from the object-oriented programming community, where what C++ programmers know as a virtual function ca... 阅读全文

摘要： Proxy classes allow you to achieve some types of behavior that are otherwise difficult or impossible to implement. Multidimensional arrays are one example, lvalue/rvalue differentiation is a second, suppression of implicit conversions (see Item 5) is a third. At the same time, proxy classes hav... 阅读全文

摘要： TBD 阅读全文

摘要： When you use smart pointers in place of C++'s built-in pointers (i.e., dumb pointers), you gain control over the following aspects of pointer behavior:Construction and destruction. You determine what happens when a smart pointer is created and destroyed. It is common to give smart pointers a def 阅读全文

摘要： The idea is to take advantage of the fact that when an object is allocated on the heap, operator new is called to allocate the raw memory, then a constructor is called to initialize an object in that memory. Preventing clients from directly instantiating objects on the heap is easy, because such... 阅读全文