The hidden compile-time cost of C++26 reflection
Summary
Vittorio Romeo explores the hidden compile-time cost of C++26 reflection, showing that while enabling reflection itself adds negligible overhead, including heavy standard library headers (like <meta>, <ranges>, and <print>) can dramatically increase compile times. The analysis highlights that per-TU overhead will be significant in large projects, and that precompiled headers or modules are likely necessary to keep iteration times reasonable. The piece advocates for minimizing standard library dependencies alongside reflection to improve compile performance.