The Howdy Glossary

Checked C is an extension of the C programming language designed to enhance safety features like safe pointer arithmetic and bounds checking. It incorporates new keywords and allows programmers to annotate code with additional pointer usage information, which can be statically verified to catch errors at compile time. This approach aims to improve the security and reliability of systems software developed in C by preventing common programming errors that could lead to vulnerabilities and runtime crashes.

Unlike traditional C, Checked C extends the type system by introducing mechanisms for safe pointer arithmetic and bounds checking through annotations, making it distinct from other languages. While competitors such as Rust, Ada, or Cyclone also focus on safety and compile-time error checks, Checked C's key advantage lies in its seamless integration with existing C codebases. This makes it easier for developers already familiar with C to adopt its safety features without needing to migrate to a new language.

Checked C targets developers working on systems software who prioritize security and reliability in their projects. By offering static verification tools alongside its enhanced type system, Checked C aids programmers in mitigating common vulnerabilities inherent in traditional C programming. Its design caters specifically to those developing critical systems software like operating systems, compilers, or network protocols where robustness is paramount.