Best practices for C language default
Apr 03, 2025 pm 03:48 PM
The best practices of default in C language: place it at the end of the switch statement as the default processing for unmatched values; it is used to deal with unknown or invalid values ??to improve program robustness; avoid duplication with case branches to maintain conciseness; comment clearly on the purpose of the default branch to improve readability; avoid using multiple default branches in one case to maintain clarity; keep the default branches concise and avoid complex operations; consider using enumeration values ??as case conditions to improve maintainability; in large switch statements, use multiple default branches to handle different situations.
Best practices for default in C language
In C, the default tag represents the default branch of the switch statement, and it will be executed when no other branch matches the given value. Here are the best practices for using default:
Placement location
The default branch should always be placed at the end of the switch statement. This is because the compiler processes branches in order, putting the default branch at the end ensures that it is executed only if no other branches match.
Warning and error handling
The default branch can be used to handle unknown or invalid cases. It can help improve program robustness by showing warning messages to users or logging errors.
Avoid redundancy
It is unnecessary to repeat the default branch's function in the case branch. If a specific case behaves the same as the default branch, the default branch should be deleted.
Use Comments
For complex switch statements, comments can help explain the purpose of the default branch. Clearly explaining why certain values ??do not have their own branch can improve the readability and maintainability of the code.
Avoid using duplicate defaults in case
Using multiple defaults in a single case branch obfuscates the code and leads to unexpected behavior. If case needs to handle multiple situations, use nested switch statements or if-else statements.
Other suggestions
- Keep the default branch concise and avoid complicated operations.
- If possible, use enum values ??as case conditions for switch statements, not constants.
- In a large switch statement, consider using multiple default branches to handle different error types or situations.
Following these best practices can help you use default effectively and clearly, improving the robustness and readability of your program.
The above is the detailed content of Best practices for C language default. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Free version of comics app entrance_free online viewing of comics app entrance
Jun 05, 2025 pm 04:30 PM
Today, we will reveal a hidden treasure for you - a platform that provides a free comics app entrance, allowing you to easily enjoy the ocean of comics and enjoy the fun of reading. This platform is not just a simple entrance, but more like a caring guide. It brings together various types of comics APPs. Whether you are a loyal fan of Hot-blooded Boys, a fan of romantic girl comics, or a fan of suspense and mystery comics, you can find an app that meets your needs here. More importantly, these apps promise to provide a free reading experience
How to enter mysql database. Three detailed steps for login methods
Jun 04, 2025 pm 06:27 PM
There are three ways to enter the MySQL database: 1. Log in through the command line, enter "mysql-u username-p" and enter the password as prompted; 2. Use MySQLWorkbench to create a new connection and enter relevant information; 3. Log in through the Python programming language, and use the mysql.connector library to connect to the database.
How to download Binance binance download tutorial on Android phone (step-by-step tutorial)
Jun 12, 2025 pm 10:15 PM
Two methods and precautions for downloading Binance on Android phones: 1. Download the APK file through the official website: visit Binance official website www.binance.com, click "Android APK Download", and enable the installation permission of the "Unknown Source" of your phone before completing the installation; 2. Download through a third-party application store: select a trusted store to search for "Binance", confirm the developer information and download and install it. Be sure to get the app from official channels, enable two-factor verification, regularly change passwords and be alert to phishing websites to ensure your account security.
The reasons and solutions for editor crash after VSCode plug-in update
May 29, 2025 pm 10:03 PM
The reason why the editor crashes after the VSCode plugin is updated is that there is compatibility issues with the plugin with existing versions of VSCode or other plugins. Solutions include: 1. Disable the plug-in to troubleshoot problems one by one; 2. Downgrade the problem plug-in to the previous version; 3. Find alternative plug-ins; 4. Keep VSCode and plug-in updated and conduct sufficient testing; 5. Set up automatic backup function to prevent data loss.
Jetbolt (Jbolt) is thriving greatly, which is why
Jun 11, 2025 pm 04:54 PM
As XRP price trends continue to attract market attention, observers have also turned their attention to emerging crypto projects such as Jetbolt (JBOLT). Although most analysts focus on the latest XRP price forecasts, many people are attracted by Jetbolt (JBOLT)'s outstanding performance in the pre-sale stage. Its pre-sales are progressing rapidly, and the latest 357 million tokens sold is a strong proof. Jetbolt has a series of cutting-edge features, such as zero-gas trading technology. Can this help it soar? At the same time, will the SEC follow-up handling of the Ripple case drive the XRP price to rise? Here is the latest analysis of Jetbolt pre-sales and XRP price trends. XRP Price Outlook: S
Process for developing SpringBoot projects with VSCode
May 29, 2025 pm 09:54 PM
VSCode was chosen to develop SpringBoot projects because of its lightweight, flexibility and powerful expansion capabilities. Specifically, 1) Ensure the environment is configured correctly, including the installation of JavaJDK and Maven; 2) Use SpringBootExtensionPack to simplify the development process; 3) Manually configure SpringBoot dependencies and configuration files, which requires a deep understanding of SpringBoot; 4) Use VSCode's debugging and performance analysis tools to improve development efficiency. Although manual configuration is required, VSCode provides a high level of custom space and flexibility.
How to view all databases in MongoDB
Jun 04, 2025 pm 10:42 PM
The way to view all databases in MongoDB is to enter the command "showdbs". 1. This command only displays non-empty databases. 2. You can switch the database through the "use" command and insert data to make it display. 3. Pay attention to internal databases such as "local" and "config". 4. When using the driver, you need to use the "listDatabases()" method to obtain detailed information. 5. The "db.stats()" command can view detailed database statistics.
Using Oracle Database Integration with Hadoop in Big Data Environment
Jun 04, 2025 pm 10:24 PM
The main reason for integrating Oracle databases with Hadoop is to leverage Oracle's powerful data management and transaction processing capabilities, as well as Hadoop's large-scale data storage and analysis capabilities. The integration methods include: 1. Export data from OracleBigDataConnector to Hadoop; 2. Use ApacheSqoop for data transmission; 3. Read Hadoop data directly through Oracle's external table function; 4. Use OracleGoldenGate to achieve data synchronization.
