C

In the first part, we learned how to serialize a simple object through the serialize () function of the CArchive class. Like the following program: Int CFoo: serialize (CArchive * pArchive) { Int nStatus = SUCCESS;   // Serialize the

  The following describes the relationship between pointers and arrays.   Pointer to a one-dimensional array   Pointer to a multi-dimensional array   Pointer to a string           1. Definition of pointer variables pointing to array elements: type *

  Next       ? Friend list             Related initialization, UDP   Void panel: init () { UdpSocket = new QUdpSocket (this ); UdpSocket-> bind (6666 ); QString msgType = "MSG_CLIENT_NEW_CONN "; QByteArray block; QDataStream out (& block, QIODevice:

1. exit is used to end the program at any time while the program is running. The exit parameter is returned to the OS. The exit function is also called implicitly at the end of the main function. When the exit function is run, it will first execute

  Abstract:This article uses examples to show how to chat, send files to each other, and capture the screen of the recipient to save as a file in the

3.1 OverviewThe Visual C ++ MFC class library defines several database classes. When using ODBC programming, CDatabase, CRecordSet, and CRecordView are often used ). Where:The CDatabase object provides a connection to the data source, through which

These are mature things. I have looked at them over the past few days and summarized them.This article discusses several methods of hook Functions in Windows. Provides a complete example of hook TextOutA. The CreateRemoteThread method is used to

This article explains the operation sequence of the server socket and client socket in a comparative way. Because these sockets useCArchiveObjects, so they must be streaming sockets. Operation Sequence of stream socket communication In

Tony bai Directly operating the string operation functions provided by the C standard library is risky. A slight carelessness may cause memory problems. This week, I wrote a small security string operation library in my spare time. However, after

I. Red/black tree (Red-Black TreeIs a binary search tree (Binary Search Tree. In the worst case, the binary search tree may become a linked list (after all nodes are inserted in ascending order ). The cause of this inefficiency is that the tree does

Array-mixed json structure for data sources Implemented basic functions Efficiency is generally the same as that of the dhtree plum blossom Snow tree (ps feels faster than dhtree and is similar to that of the plum blossom Snow tree. My personal test

(1) write a simple variable parameter C function Next we will discuss how to write a simple variable parameter C function.C functions use the following Macros in the program:Void va_start (va_list arg_ptr, prev_param ); Type va_arg (va_list arg_ptr,

New and delete are particularly important in C ++. Here we will briefly summarize the meanings of new and delete. New and operator new Many syntaxes in C ++ are hard to understand, such as: newOperator (operator, the same below)And operator

Muduo IntroductionOne of the purposes of writing a Muduo network library is to simplify the daily TCP network programming, so that programmers can focus on the implementation of business logic, rather than competing with the Sockets API every day. I

DiscardDiscard is probably the simplest persistent connection TCP application layer protocol. It only needs to pay attention to the "message/Data arrival" event in the "Three-half events". The event processing function is as follows: 1: void

Prelude Some netizens to me, the previous three chapter (http://t.cn/hgVPmH) interview questions, whether it is a bit too difficult. As he said, the interview questions of most companies are not as abnormal or complex as the interview questions of

In the previous article, we asked a few questions. This article is from hello. c's research will be conducted in various aspects. By the end of this article, we will see which of these questions can be answered. Of course, there are still some

Space for chaosLearning windows programming from scratch (4) -- Starting from libc. libFrom the previous article, we have learned the concept of a C Runtime library. This is not a new thing, but it is generally hidden behind the scenes, c/C ++ doesn'

Original question:There are three types of stairs in the 100 class, one step at a time, two steps at a time, and three steps at a time. How many steps are there after 100 steps using algorithms?Answer:F (n) = f (n-1) + f (n-2) + f (n-3)There are two

Print? Description  A department store uses a discount method for sales promotion.(1) If the price is 1000 yuan or higher, the discount is off;(2) 2000 Yuan or more, off;(3) If the price is 3000 yuan or higher, the discount is off;(4) 5000 Yuan or