Cppcheck is a popular open-source static analysis tool that is used to detect errors in C/C++ code. It works by analyzing the code for potential bugs and security vulnerabilities, which can then be addressed by developers.

Cppcheck examines the source code of a C++ application or library, without actually executing the code. It performs a variety of analyses on the code to identify potential issues such as null pointer deference, memory leaks, buffer overflows, and more.

Cppcheck also checks for coding standards violations, such as naming conventions, indentation, and other style-related issues. It can be configured to use different standards, including the Google C++ Style Guide, the GNU Coding Standards, and more.

One of the advantages of using a static analysis tool like Cppcheck is that it can detect errors early in the development process, before they become harder and more expensive to fix. It can be integrated into an automated build process, allowing developers to catch issues quickly and ensure that their code meets the required quality standards.

Overall, Cppcheck is a powerful tool for detecting potential issues in C++ code, helping developers to produce more reliable and secure software.

Usage:

cppcheck --language=c filename.c --enable=all