Floating-Point Error Handling in C++: What Actually Works (opens in new tab)

Floating-point errors are unavoidable, but how you detect and handle them can make the difference between clean, high-performance C++ code and a debugging nightmare. In this article, we explore the practical techniques for handling NaNs, infinities, and other FP errors — from manual checks to sticky bits and hardware traps — and reveal which approaches actually work without sabotaging performance.