10 recommended articles about header files

mysql_free_result() only needs to be called when considering how much memory will be used when returning a large result set. All associated memory will be automatically released after the script ends. It is a good habit to release the cursor memory after we execute the SELECT statement. . Memory release can be achieved through the PHP function mysql_free_result(). //Define header file, character format header("Content-type:text/html;charset=utf-8"); error_reporting(ERR_ALL & ~ E_NOTICE); ​ //Define local server connection information $servername="localhost"; $username="root"; $passw

1. 10 recommended articles about mysql_free_result

##Introduction: mysql_free_result() only needs to be called when considering how much memory it will take up when returning a large result set. All associated memory will be automatically released after the script ends. It is a good habit to release the cursor memory after we execute the SELECT statement. . Memory release can be achieved through the PHP function mysql_free_result(). //Define header file, character format header("Content-type:text/html;charset=utf...

2. Details about cl.exe Introduction

Introduction: Let’s start with the compilation process of the program    We introduced it in the previous article Knowledge about the classification of programs under Windows systems, compilers, connectors, common header files, library files, etc. This article will talk about the compilation process of the program. I believe everyone knows that the compilation process of source code is divided into two steps: first, compilation. process, the main job is to translate our source code into an intermediate file, which is the role of cl.exe in Windows, it translates our .c file or .cpp file into an intermediate .obj file; the second is the connection process, which is mainly The work is to...

3. Detailed introduction to the queue issue

Introduction: I recently wrote a program that used the queue operation of the C language under the Linux system, so I had the following problem The following is the code of the queue: This queue header file extern struct  ;pqueue Que;/*Construct an empty queue*/extern pQueue *InitQueue();/*Destroy a queue*/extern void ...

4. Win32 SDK Basics (2) Detailed explanation of the cl.exe and link.exe compilation and linking procedures (picture)

Introduction: Let’s start with the compilation process of the program. In the previous article, we introduced the classification of programs under the Windows system, compilers, connectors, common header files, library files, etc. This article will talk about the compilation of programs. process. I believe everyone knows that the source code compilation process is divided into two steps: First, the compilation process, the main job is to translate our source code into an intermediate file, this is the role of cl.exe in Windows, it will The .c file or .cpp file is translated into an intermediate .obj file; the second is the connection process, the main job is to convert a variety of intermediate files

5. Win32 SDK Basics (1 ) of Windows program classification and a detailed explanation of the directories where libraries and header files are located

##Introduction: 1. Windows program Category 1. Console program Windows Dos program does not have its own window and needs to use the Dos window for user interaction. Main function: int main(){ return 0;} 2. Programs under the windows system that are visible to windows window programs are basically It belongs to this kind, included in word, excel, etc., main function: int APIENTRY wWinMain(_In_ HINSTANCE

6.

Share Cython installation and usage experience

Introduction: It is a tool used to quickly generate Python extension modules (extention modules). Its syntax is python language syntax and c language syntax. It is easier to write python extension modules than swig. Maybe you will say that swig can directly pass the c header file

7. Xiaoqiang’s HTML5 mobile development road (47 )——jquery mobile basic page framework

##Introduction: JNI is a hybrid programming of java and C/C++ The interface can easily implement Java calling C/C++ language. There are many tutorials on the Internet for specific usage methods, so I won’t go into too much detail here. This blog only focuses on common problems in using JNI. 1. Use the command to generate the header file: javah*.class. This is wrong. Running the above command will prompt: java.lang.IllegalArgumentException: Not a valid class name:Se

##8.

Research on the inclusion order of C++ header files

Introduction: The company is promoting coding standards, and the leader proposed to basically use the "Google C++ Programming Style Guide". Among them, the "Google C++ Programming Style Guide" includes the order of header files as follows:

9.

Linux pipe function

Introduction: pipe (establishing a pipeline): 1) Header file #include 2) Define function: int pipe(int filedes[2] ); 3) Function description: pipe() will establish a pipeline and return the file descriptor from the parameter fields array.                                                                                                                                                                                                       European Japan in Europe in Japan in Europe in - in the pipeline to have. 4) Return value: If successful, return zero, otherwise return -1, and the cause of the error is stored in errno. Error code: E

##10.

Use C++ to analyze the C++ syntax format

Introduction: Recently, C++ projects need to use scripts, which is related to how to bind objects to the script running environment. Because multiple scripting languages ​​are used, existing binding technologies cannot meet the needs. Therefore, we can only seek to parse the C++ header file and then bind according to the description. At first, I found that boost has a set, but boost is too bloated and has certain requirements for the establishment of the development environment after the project. I strive for the simplest project management, and boost is not suitable. Write your own set.

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