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0. IntroductionI am in the final course of undergraduate design, do more interesting, while the recent internet of things is gradually hot, so share your work design process. The work is in the wit cloud the simplest STM32 core board routines, the use of the communication protocol is witty cloud-written smart cloud connection firmware, Web programming is also the websocket of the smart cloud Demo. I do is i

This article discusses: Windows Smart Card Programming Basics How to implement a sample smart card application Write a managed package that implements smart card functionality Smart card Transaction Management This article is written based on a pre-release version of Windows Vista. The information contained therei

Blockchain Development (ii) deployment and operation of the first Ethereum smart contract Lihe August 22, 2016 This article is starting 8BTC There are many articles on the network that deploy smart contracts, but all have a common feature, is the command line to deploy, first build the SOLC environment, then deploy Geth or ETH node, and then step by step to generate wallets, ABI, contract address for deploy

C + + smart pointer is mainly on the basis of ordinary pointers encapsulated a layer, so that users of the use of pointers more convenient and rest assured that in the process of use without worrying about the pointer because of the problem caused by the exception. In c++11, the smart pointer has three kinds of:shared_ptrthe initialization of shared_ptr1) shared_ptr2) shared_ptrP.use_count ();//The latter r

How to answer the questions about smart pointers in C + + interviews. 1, what is the smart pointer. 2, why use the smart pointer and the principle of the smart pointer is what. 3. What are the common smart pointers under analysis? 4, to achieve a

1. Why do I need a smart pointer?Simply put, smart pointers are designed to implement garbage collection mechanisms similar to those in Java. The Java garbage collection mechanism frees programmers from the complexity of memory management tasks, and Java will automatically help recycle after applying for a chunk of memory without having to focus on where and when to release the memory. But for efficiency an

Tags: smart routing Since the first release of the smart routing concept, Xiaomi, 360, Lenovo, Baidu, TCL, Huawei, Haier, Leeco, meizu and other domestic Internet and hardware giants have followed up, most of the products have been finished, and some are still in the rumor stage. However, smart routing has become a battle for the military. The concept of "Home Ne

1. Auto_ptrAuto_ptr is the class template provided by the C + + standard library, which is the owner of this memory, and the Auto_ptr object is initialized to the dynamic memory created by new, and a piece of memory cannot be assigned to two owners at the same time. When the Auto_ptr object life cycle ends, its destructor automatically frees the dynamic memory owned by the Auto_ptr object. Even if an exception occurs, dynamic memory can be freed by the exception stack unwind process. Auto_ptr do

We must all know that the service function of our Windows system is very powerful, in addition to some of the services we usually use, there are some services may be we do not know, not commonly used, but these services are in our Windows system. In many Windows system services, there is a smart card service, so what is a smart card service? In fact, the smart ca

Smart pointer Implementation Code Source blog: "http://blog.csdn.net/to_be_better/article/details/53570910"Modify: Add a Get () function to get the raw pointer (raw pointer).Other sources of thought "effective C + +"The implementation code for smart pointers is as follows:Template classsmartptr;templateclassptr{friendclassSmartptr; T*m_ptr; size_t M_count; PTR (T*p = NULL): M_ptr (P), M_count (1) {} ~

To you photoshop software users to detailed analysis of the use of smart objects to create a logo display template tutorial. Tutorial Sharing: First, we use CC2015 to create a new file, the size of random, I used 1920*1280 pixels, fill the background color for #232323. Adds a gradient overlay to the background layer. Add a 1 pixel noise, Gaussian distribution, check monochrome. Put in

With the development of IC card from a simple synchronous card to an asynchronous card, from a simple EPROM card to the internal microprocessor-based smart card (also known as CPU card), the requirements of the IC card is more and more high. The management of the card itself is more and more complex, so there is an urgent need to have a tool to solve this contradiction, and the emergence of the internal microprocessor-enabled

Directory C + + smart pointer, pointer container principle and simple implementation (Auto_ptr,scoped_ptr,ptr_vector). Auto_ptr Scoped_ptr Ptr_vector C + + smart pointer, pointer container principle and simple implementation (Auto_ptr,scoped_ptr,ptr_vector). PrefaceRecently write a Muduo asynchronous log touch a lot of smart pointers, bu

For ordinary users, browsers need us to really operate a few places, but the favorites has always been a must not open the issue. Whether favorites can be freely imported and created directly affects the user's experience in using the browser, let's take a look at how smart 2345 Smart browsers are in favorites Management today. When it comes to favorites management, the first thing we think about is import

Smart pointers to c++11Original link: To c++11 smart pointers, forwarding please indicate the source. long-awaited begins. The last article "from the Auto_ptr" in detail summed up the c++98 standard in the auto_ptr, but with the arrival of C++11, Auto_ptr is no longer, is about to become history; good things are always welcome, as everyone is using "quasi" Standard library boost shared_ptr;c++ Standards

Photoshop sharpening filters have the USM sharpening, further sharpening, sharpening, edge sharpening and intelligent sharpening five kinds. The "USM Sharpening" filter is to sharpen the image by enhancing the contrast of the edges of the image, and the greater the sharpening value the easier it is to produce black edges and white edges; And the "sharpen", "sharpen" and "Edge sharpening" filters are the software set default values to sharpen the image, the result is beyond control, the more sh

Introduction: Key points for writing smart pointers:A) The constructor receives heap memoryb) destructor frees memoryc) Prohibit value semantics if necessary.d) overloaded * with two operator characters1 #ifndef Start_ptr_h2 #defineStart_ptr_h3 4#include 5 using namespacestd;6 7 classAnimal8 {9 Public:TenAnimal () {cout "Animal"Endl;} One~animal () {cout "~animal"Endl;} A - voidRun () {cout "Animal is running ....."Endl;} - the }; - -