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Difference between thread and process: Simply put, a process is the running thread of an exe. The thread is the execution of a code fragment in the process and the smallest unit of thread memory allocation Parallel: There can be multiple threads in a process, and the operation between threads can be parallel How to synchronize or ...

User control Devices usually have some user settable controllers, such as brightness and saturation, which will be displayed in the graphical user interface. However, different devices have different available settings, and in addition, their settable value range and default values are different on different devices. Control ioctl provides t ...

brief introduction The main purpose of this paper is to establish the communication connection between STM32 and Dynamixel steering gear, develop the control framework of upper computer lower computer steering gear, issue instructions in the upper computer, the lower computer executes the outer loop of steering gear force control, and the stee ...

1, Title 1.1 Title picture 1.2 Title Document #include <iostream> #include <ctime> using namespace std; //Define a type def that will be very useful when we implement our functions. typedef char* charPointer; //This type def will make cstring parameter passing by reference easy to debug //Example void foo(charPointer& x) ...

std::string itself realizes the management of character array and provides common functions of string class, For example, lookuptoggle casestructure wait But std::string is a runtime calculation after all. As we all know, after std C++11, it supports calculating some constant values during compiler compilation, which can reduce runtime work ...

For the use of multithreading, this paper briefly introduces several ways of using multithreading, and uses several simple examples to introduce multithreading. The compiler is visual studio. 1, AsyncFuture The knowledge points used are std::async and std::future 1. std::async function prototype template<class Fn, class... Args> futur ...

Inheritance reflects the hierarchical relationship between classes Polymorphism is to consider this hierarchical relationship and the relationship between specific member functions of the class itself to solve the problem of behavior re abstraction 5.1 static binding and dynamic binding Polymorphism: the phenomenon that the same symbol or nam ...

1. Maze Title Description Recently, little Y is playing a maze game. The game is played on an n * m grid. Each grid may be an open space or an obstacle. At the beginning of the game, the character controlled by the player is located in an open space in the figure. During the game, players can use the up, down, left and right keys to control ...

1, To create an anonymous pipe: #include <unistd.h> int pipe(int pipefd[2]); Function: create an anonymous pipeline for inter process communication; Parameter: int pipefd[2] this array is an outgoing parameter; pipefd[0] corresponds to the reading end of the pipeline; pipefd[1] corresponds to the write end of the pipeline; Return va ...

Catalogue ​​​​​​1.1 download resource package 1.2 installation of PCL|OpenNI2 1.3 configure pcl1 in vs2015 environment eight point one Release configuration Configuration under Debug 1.4 testing CMake compilation VS2015 compilation Series error Problem to be solved! Rotten 1.5 description 1.6 References: Attachment: PCL download w ...