1. Random function C++ uses the random_device type variable of the random header file to generate random numbers. This random number generator uses the Mersenne twister algorithm to quickly generate high-quality pseudo-random unsigned ints. 1. Pseudo-random numbers and true random numbers. Pseudo-random numbers: seemingly random numbers, with repeatability and predictability. True random numbers: appearing in […]
Tag: anonymous
[Golang]Multiple return value functions, defer keyword, built-in functions, variable parameter functions, class member functions, anonymous functions
Function Article directory function multiple return function Pass by value, pass by reference class member function change external variables variadic function defer and trace illustrate Some common operations accomplish Using `defer` to implement code tracing Record function parameters and return values Common built-in functions Pass function as parameter Closure Example Closure returns function as return […]
Python anonymous functions, generators, built-in functions, derivation
Table of Contents Day13: Built-in functions, generators and derivation 13.1 Anonymous functions 13.2 Generator 13.3 Built-in functions 13.4 Derivation Day13: Built-in functions, generators and derivation 13.1 Anonymous function An anonymous function is based on a lambda expression to define a function that can have no name. The format is: lambda parameter: function body Due to […]
[Python is not a python] function | pass empty statement | lambda anonymous function
I. Function 0x00 What is a function Functions in Python are widely used. In the previous chapters, we have been exposed to multiple functions, such as input(), print(), range(), len() functions, etc., These are all built-in functions of Python and can be used directly. In addition to built-in functions that can be used directly, Python […]
Jetpack: 009-lambdas, anonymous functions and closures in kotlin
Article directory 1. Concept introduction 2. How to use 2.1 Variables of function type 2.2 Higher-order functions 3. Content summary 4.Experience sharing We introduced the content related to Icon and Imamg in Jetpack in the previous chapter. This chapter mainly introduces the content in Kotlin. lambda, anonymous functions and closures. Enough chatting, let’s talk Android […]
Design and implementation of local anonymous instant messaging system based on WinSock technology
Table of contents Design and implementation of anonymous communication Windows client 1 Summary 1 1 Introduction 2 1.1 Background and significance of topic selection 2 1.2 Project Task 3 1.3 Arrangement of thesis chapters 4 2 Introduction to related technologies 5 2.1 Introduction to Windows Network Architecture 5 2.2 Introduction to Windows filtering platform 8 […]
Embedded Development Plan-38—-C++–Anonymous objects–Friends–Constant member functions and constant objects–Operator overloading
Eighty-seven, anonymous objects Concept: no named object Format: class name(); function Initialize named object with anonymous object Initialize object array with anonymous object Anonymous objects are used as function arguments Example: #include <iostream> using namespace std; class Dog {<!– –> private: string name; string color; int *age; public: //No parameter constructor Dog() {<!– –> cout […]
[Inter-process communication] Pipe communication {The purpose of inter-process communication; Common methods of inter-process communication; Anonymous pipe: Implementation principle, pipe symbol |, system call pipe, process pool; Named pipe: mkfifo instruction, system call mkfifo}
1. The purpose of inter-process communication Most of the code we wrote before was a single-process task. A single process cannot use the concurrency function of the process, nor can it realize the collaborative work of multiple processes. Therefore, we need to implement multi-process tasks, and the key to multi-process is inter-process communication. Inter-process communication […]
Linux — Anonymous pipe for inter-process communication
All the codes involved in the blog have been uploaded to Gitee, please download them yourself if necessary Directory Preface communication basics pipeline anonymous pipe Step 1: Create the pipeline Step 2: Create a child process Step 3: Start communicating Step 4: End communication Anonymous pipe communication code implementation Four special situations Multi-process control based […]
Friend + inner class + anonymous object
Friends Friends provide a way to break through encapsulation, and sometimes provide convenience. However, friends will increase coupling and destroy encapsulation, so friends should not be used frequently. There are two types of friends, namely: function as friend class friend Function as friend Question: Now try to overload the operator