C

Talk C chestnuts together (100th back: C language instance -- use semaphores for inter-process synchronization and mutex-1) Hello, everyone. The last time we talked about the examples of inter-process synchronization and mutual exclusion, this

IOS, Objective-C, and album functions ., Iosobjective-c # Import "ViewController. h "# define kuan [UIScreen mainScreen]. bounds. size. width # define gao [UIScreen mainScreen]. bounds. size. height @ interface ViewController () @ property (weak,

Implementation of the IOS beginner guide page, source code ., Source code for ios beginners 1/* 1. Find in Main. storyboard, and add ScrollView and PageControl to ViewController. 2. Add ImageView to ScrollView. add several images to the Guide page

Dynamic use of arrays in c and dynamic use of Arrays # Include # include # include # define MAXNUM 200int Isood (int n); using namespace std; int main (void) {int n; cout n; int * p; p = (int *) malloc (n * sizeof (int); for (int I = 0; I    

Talk C together (96th back: C language instance -- use shared memory for inter-process communication II) Hello, everyone. In the previous session, we talked about the example of using the shared memory for inter-process communication. In this

[Linux] Ubuntu C language access MySQL database entry, tumysql The system used is Ubuntu 11. 10. The database is MySQL.  MySQL database environment Configuration   First, install the MySQL client and server. The command line installation method is

OpenGL programming, opengl I. Introduction OpenGL is the most widely accepted 2D/3D graphics API in the industry. Since its birth, it has produced thousands of excellent applications on various computer platforms and devices. OpenGL is independent

Create and call a Linux C library. Create and call a library If you have a huge project and put hundreds of megabytes or even several GB of code in an application, future modifications will make you very complicated, every time you use this function,

In IOS (Xcode) DEBUG mode (RELEASE mode), NSLog output is controlled. NSLog is output in two different situations, xcodenslog [New Year's weather,]   During IOS program development, developers often need to use NSLog to output some information.

Talk C together (88th back: C language instance-use pipelines for inter-process communication 1) Hello, everyone. In the previous review, we talked about the example of using pipelines for inter-process communication. The example is as follows:Use

Talk C together (86th back: C language instance -- Use signals for inter-process communication 3) Hello, the last time we talked aboutExample of inter-process communicationIn this case, let's continue with the previous example. When you leave the

File Operation 1, operation 1 Simple File Operations // Input the records of the two students into the txt file and display them on the screen # include # include # define N 2 typedef struct stu {char Class [20]; int age; char name [9];} stu; //

Let's talk about the C language pointer. The content I can write is still very small. Please forgive me for its limited level. I hope you can correct me.   Pointers have plagued countless programmers. Maybe your teacher will tell you that pointers

Basic knowledge of C language-cycle structure and basic knowledge cycle of C Language Print 1 ~ with while ~ A multiple of 7 between 100 Int I = 1; When the result of a while loop is true, execute the loop body in braces and repeat until the result

Use 5 udfs and 5 udfs by yourself This below is actually not very difficult, take a closer look to better understand. # Include // function declaration // void sayHi (); // function implementation // void sayHI () // {// printf ("Hello everyone !! \

C and C character strings The C language usually contains characters and strings, while a string or string is actually an array. Character array Definition char arr[]={'h','e','l','l','o','\0'}; The defined string: char arr1[]="HELLO"; The character

The Application of struct In the Firmware Library.   The definition and reference method of the general struct are introduced last time. Next we will briefly describe how to use the struct in the official Firmware Library. The reference method of

Experience-custom tabbar (inherited from UITabBar)Generally, a custom tabbar can be inherited from the UITabBar of the system or the tabbar of the UIView. Now let's take a look at some details that need to be paid attention to in the inheritance and

Recognize struct, struct   ST encapsulates the register group in the form of struct. Therefore, it is also an important step to learn the Firmware Library. In C, a struct is a data structure that can be declared as a variable, pointer, or array to

C random number, random number1 Before talking about this question, let's talk about the role and usage of srand. Srand () function: Prototype: void srand (unsigned seed) Function: starts when a random number is generated. This function is used with