Optimizing the unoptimizable: a journey to faster C++ compile times2024-01-06In this post I’ll talk about bringing compile times of the {fmt} library on par with the C standard I/O library (stdio).First some background: {fmt} is a popular open-source formatting library for C++ that provides a better alternative to C++ iostreams and C stdio. It has already surpassed stdio in many areas:Type safety with compile-time format string checks available by default since C++20 and as an opt in for C++14/1...