Programmer Think

In recent projects, AES algorithm needs to be implemented by C language. Here I implement it by Mbedtls library. 1. Download Mbedtls First, we put the Mbedtls code into the project, and the related transmission gates are as follows: Official download address of Mbedtls The official website is slo ...

C + + strings (string) Constructors Syntax: string(); string( size_type length, char ch ); string( const char *str ); string( const char *str, size_type length ); string( string &str, size_type index, size_type length ); string( input_iterator start, input_iterator end ); T ...

Debugging analysis How are methods in OC called? Before checking the data, we know that the method call of OC is in the form of message sending, so let's explore the source code LGPerson *person = [[LGPerson alloc] init]; Class pClass = [LGPerson class]; [person sayNB]; Assembly vi ...

Data Structure-Cyclic Queue (C Language) To learn circular queues, first understand the queues.A queue is a first-in-first-out linear table that allows insertion only at one segment of the table and deletion of elements at the other end.The end allowed to insert in the queue is the end of the queue, ...

C Array Arrays are sequential collections that store a series of variables of the same type.All arrays consist of contiguous memory locations. Declare Array You need to specify the type and number of elements type arrayName [ arraySize ]; Initialize Array //The number of values between braces { ...

Day 5 design parser 5.1 syntax of stone Listing 5.1 syntax definition of stone primary : "(" expr ")" | NUMBER | IDENTIFIER | STRING factor : "-" primary | primary expr : factor { OP factor } block : "{" [ statement ] { (";" | EOL) [ statement ] } "}" ...

Overview Polymorphism is an important feature of object-oriented programming. In C + + language, polymorphism means that functions with different functions can use the same function name, and can call functions with different contents with one function name. There are two kinds of polymorphism in C + +: 1. Static polymorphi ...

Introduction - overall understanding The event driven model of redis ae has a lot of chatting on the Internet. However, after you carefully read one article after another, it may be very comfortable for you to read, but for Why does the author write like this, starting point, advantages, disadvantages... Maybe it's still vague, isn't it? We ...

I finished the little game without interface and the game of computer in my blog, Using C language to realize small game - three chess And a little game full of memories of the same year Using C language to realize small game - minesweeping Next, let's write another simple, interface free, small game, computer-operated game 2 ...

Definition The so-called shortest path problem refers to: if there may be more than one path from one vertex (source point) to another vertex (end point) in the graph, how to find a path to minimize the sum of weights (called path length) along each side of the path. Next, we introduce two commonly used shortest path algorithms: Dijkstra algori ...