Programmer Group

C++ Primer Chinese Version (5th Edition) practice solution collection Write your own answers. If there are mistakes, please correct them in the comment area! 1 For some members, the base class wants its derived classes to customize their own versions (rather than directly inherit without change). At this time, the base class defines these ...

Article catalog prefaceI Experimental contentII code 1.CMatrix.h2.CComplex.h3.CMatrix.cpp4.CComplex.cpp5.main.cpp3, Testingsummary preface This article is mainly about the creation of two-dimensional matrix in C + + and the application of various operators to two-dimensional matrix. Tip: the following is the main content of t ...

Lamda expression Lambda expressions in C++ 11 are used to define and create anonymous function objects to simplify programming. A complete Lambda expression is as follows: [=] (int x, int y) mutable -> int { int z = x + y; return z; } [Function object parameters] (Operator overloading function parameters) mutable or exception statement - ...

1. Constructor: 1.1 concept of constructor Compared with C language, C + + has a better feature is constructor, that is, a class controls the initialization process of its object through one or several special member functions. The task of the constructor is to initialize the data members of the object. Whenever the object of the class is ...

Recursive and Divide-and-conquer Strategy 1. Recursion 1. Distinguish Recursion from Cycle Recursive: You open the door in front of you and see that there is still a door in the house. You walk over and find that the key in your hand can open it. You push open the door and find that there is still a door in it. You continue to open it. ...

Practice compiling and installing the famous C/C + + image processing open source software library Opencv3.x under the Ubuntu 16 / 18 system. Preface (installation steps of opencv) Reference article: https://blog.csdn.net/forever_008/article/details/103625637 According to step by step, problems can be solved by Baidu Tip: opencv has ...

1. Background Learning PF_ During ring, it is found that libpcap is overloaded. So back to basics, I learned the pcap packet capturing principle again. 2. Relevant knowledge 2.1 principle This article is very clear< libpcap implementation mechanism and interface function> The packet capture mechanism implemented here is to add a b ...

preface We have already touched the topic of pointer in the chapter of pointer at the primary stage. We know the concept of pointer: 1. A pointer is a variable used to store an address, which uniquely identifies a piece of memory space. 2. The size of the pointer is fixed 4 / 8 bytes (32-bit platform / 64 bit platform). 3. The pointer i ...

03: use const as much as possible 1:const modification of pointers and constants char greeting[]="Hello"; char* p=greeting; //non-const pointer, non-const data cons seven char* p=greeting; //non-const pointer, const data char* coast p=greeting; //const pointer, non-const data coast char* coast p=greet ...

56 line less than AC Idea: (look here! Look here! [original] it is troublesome to delete duplicate elements (move them to another array at the same time) and change the address of the data behind the original table. It is troublesome and time complexity is high. [now] one key point is that the next address of the data is not required. Change ...