Building a Panic Function with C++20
Crashing can be an effective way to handle errors in programming, and it can simplify debugging and reduce complexity. In this article, the author demonstrates how to build a panic function using modern C++ techniques. The panic function prints the source location of the call site, allows for format strings with arguments, and performs full type checking of the format string. The author utilizes two components from C++20, namely std::source_location and std::format. std::source_location captures the file and line of the call site, while std::format provides a type-safe extensible replacement for printf style formatting. The article includes the full source code for the panic function and provides an example of its usage. This is a valuable resource for developers who want to improve error handling in their C++ projects.